Ear tip and wearable device including the same

Abstract

To provide an ear chip having a conductive element embedded therein, and a wearable device including the ear chip.SOLUTION: In a wearable device (for example, earphone) 1, an ear chip 2 includes a main body 21, a first conductive element 22a embedded at least partially in the main body, and a second conductive element embedded at least partially in the main body and apart from the first conductive element. The main body includes a central part 21a including an upper part 21t, and a tail part 21b extending from the upper part of the central part. The first conductive element is close to the upper part of the central part and the second conductive element is far from the upper part of the central part.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention generally relates to ear tips, and more particularly to ear tips embedded with conductive elements.

Background Art

[0002] Monitoring biologically relevant information helps determine a wide range of an individual's physiological characteristics. Integrating monitoring devices (e.g., sensors) with wearable devices (e.g., earphones) has become increasingly popular because it enables continuous and non-invasive collection of relevant information.

Summary of the Invention

Problems to be Solved by the Invention

[0003] An object of the present invention is to provide an ear tip and a wearable device including the ear tip.

Means for Solving the Problems

[0004] In one or more embodiments, the present invention provides an ear tip. The ear tip includes a body, a first conductive element at least partially embedded in the body, and a second conductive element at least partially embedded in the body and spaced apart from the first conductive element. The body includes a central portion having an upper portion and a tail extending from the upper portion of the central portion. The first conductive element is proximate to the upper portion of the central portion, and the second conductive element is remote from the upper portion of the central portion.

[0005] In one or more embodiments, the present invention provides an ear tip. The ear tip includes a body and a proximity sensor at least partially embedded in the body. The body includes a central portion having an upper portion and a tail extending from the upper portion of the central portion.

[0006] In one or more embodiments, the present invention provides a wearable device. The wearable device includes an ear tip. The ear tip includes a body having a central portion with an upper portion and a bottom portion opposite the upper portion, a first conductive pad surrounded by the central portion of the body, and a second conductive pad surrounded by the central portion of the body and spaced apart from the first conductive pad. The wearable device includes a housing configured to fit to the bottom portion of the central portion. The housing includes a third conductive pad provided corresponding to the first conductive pad and a fourth conductive pad provided corresponding to the second conductive pad. The first conductive pad is close to the bottom portion of the central portion, and the second conductive pad is far from the bottom portion of the central portion.

Brief Description of the Drawings

[0007] Aspects of the present invention will be readily understood from the following detailed description when taken in conjunction with the accompanying drawings. Note that various features may not be drawn to scale. Dimensions of various features may be arbitrarily enlarged or reduced for clarity of explanation.

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Figure 1

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Figure 2A

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Figure 2B

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Figure 2C

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Figure 2D

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Figure 3A

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Figure 3B

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Figure 3C

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Figure 4A

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Figure 4B

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Figure 5A

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Figure 5B

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Figure 6A

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Figure 6B

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Figure 6C

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Figure 7

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Figure 8

[0025] Throughout all the drawings and the detailed description, common reference numerals are assigned to the same or similar elements. The present invention will become more apparent from the following detailed description in conjunction with the accompanying drawings.

DETAILED DESCRIPTION OF THE INVENTION

[0026] Hereinafter, the present invention provides many different embodiments or examples to realize different features of the provided subject matter. Hereinafter, specific examples of components and installations will be described. It goes without saying that these are merely examples and are not intended to limit the present invention. In the present invention, the formation of the first feature above or on the second feature in the following description may include embodiments in which the first feature and the second feature are formed in direct contact, or embodiments in which additional features are formed between the first feature and the second feature so that the first feature does not directly contact the second feature. Also, the present invention may repeat reference numerals and / or letters in various embodiments. This repetition is for simplicity and clarity and does not itself define the relationship between the various embodiments and / or configurations described.

[0027] Hereinafter, embodiments of the present invention will be described in detail. However, it should be understood that the present invention provides many applicable concepts that can be implemented in a wide variety of specific situations. The specific embodiments described are for illustration only and do not limit the scope of the present invention.

[0028] Referring to FIG. 1, FIG. 1 is a cross-sectional view of a wearable device (e.g., earphone) 1 according to some embodiments of the present invention. The wearable device 1 includes an ear tip 2 and a housing 3. The housing 3 may be fitted into or received by the ear tip 2. In some embodiments, the housing 3 may be inside the ear tip 2.

[0029] The application and usage method of the illustrated ear tip 2 are for illustrative purposes only and are not intended to limit the present invention. For example, the ear tip 2 of the present invention may be used in combination with any wearable device. For example, in some embodiments, the ear tip 2 of the present invention can be used in combination with a device that transmits audio signals. In some embodiments, the ear tip 2 of the present invention can be used in combination with a detection device, an electronic device (e.g., a signal processing device) and / or other corresponding external devices to further process the electrical signals collected through the ear tip 2. In some embodiments, the ear tip 2 of the present invention can be used as an earplug, for example, an earplug for sleeping.

[0030] As shown in FIG. 1, the ear tip 2 includes a body 21, conductive elements 22a, 22b, conductive wires 22w, and conductive pads 23, 24.

[0031] In some embodiments, in a side view, the body 21 of the ear tip 2 includes a central portion 21a and a tail portion 21b (or two arms) extending from the central portion 21a. In some embodiments, in a top view (e.g., the top view of FIG. 2A), examples of the shape of the body 21 include a substantially disk shape, a donut shape (torus shape), and / or an elliptical shape.

[0032] The central portion 21a of the main body 21 has an upper portion 21t and a bottom portion 21m opposite to the upper portion 21t. When the wearable device 1 is worn by a user, the upper portion 21t of the ear tip 2 is located deeper in the ear canal than the bottom portion 21m. In some embodiments, when the wearable device 1 is worn by a user, the upper portion 21t is closer to the user's blood vessel (e.g., the internal carotid artery or the internal jugular vein) than the lower portion 21m. The bottom portion 21m may be adapted or shaped to receive the housing 3 of the wearable device 1.

[0033] In some embodiments, examples of the material of the main body 21 include rubber, silicon, sponge, or other suitable materials such as elastic materials, soft materials, or flexible materials. The main body 21 may be soft and flexible enough to be worn by the user for a long time without discomfort.

[0034] The conductive elements 22a and 22b are provided at the tail portion 21b of the main body 21, and the conductive pads 23 and 24 are provided at the central portion 21a of the main body 21. The conductive elements 22a and 22b are electrically connected to the corresponding conductive pads 23 and 24 for signal transmission.

[0035] The conductive elements 22a and 22b are provided in the space defined by the main body 21. For example, the conductive elements 22a and 22b are surrounded, embedded, or covered by the main body 21. In some embodiments, as shown in FIG. 1, the conductive elements 22a and 22b are completely embedded in the main body 21.

[0036] In some embodiments, conductive elements 22a and 22b can be used to collect one or more pieces of information related to the user of the earphone. In some embodiments, conductive elements 22a and 22b can be used to collect one or more of the pulse transit time (PTT), electroencephalogram (EEG), electrocardiogram (ECG), electromyogram (EMG), electrooculogram (EOG), galvanic skin response (GSR), sweat composition, pH, or other biologically related information related to the user of the earphone. For example, an ECG can be generated from the user using the electrical signals collected by conductive elements 22a and 22b.

[0037] Housing 3 may include, for example, conductive pads 31 and 32 and an electronic device (not shown). In some embodiments, conductive pad 31 may be provided at a location corresponding to conductive pad 23, and conductive pad 32 may be provided at a location corresponding to conductive pad 24. For example, when housing 3 is received in ear tip 2, conductive pad 23 may be in contact with conductive pad 31. The electrical signals collected via conductive elements 22a and 22b may be transmitted to the electronic device within housing 3 via conductive wires 22w, conductive pads 23, 24, and conductive pads 31, 32. Next, the electrical signals can be transmitted to an external device or apparatus (e.g., an ECG machine) for further processing.

[0038] As shown in FIG. 1, the distance between the upper portion 21t and the conductive element 22a is different from the distance between the upper portion 21t and the conductive element 22b. For example, conductive elements 22a and 22b are provided at different distances as measured from the upper portion 21t. For example, conductive elements 22a and 22b are provided at different heights with respect to the upper portion 21t. For example, conductive element 22a is closer to or proximal to the upper portion 21t than conductive element 22b. For example, conductive element 22b is farther from or distal to the upper portion 21t than conductive element 22a.

[0039] Similarly, the distance between the upper portion 21t and the conductive pad 23 is different from the distance between the upper portion 21t and the conductive pad 24. For example, the conductive pad 24 is closer to or proximal to the upper portion 21t than the conductive pad 23 (or farther from or distal to the bottom portion 21m). For example, the conductive pad 23 is farther from or distal to the upper portion 21t than the conductive pad 24 (or closer to or proximal to the bottom portion 21m).

[0040] By providing the conductive elements 22a and 22b at different distances measured from the upper portion 21t, the conductive element 22a can be closer to the user's blood vessels (e.g., the internal carotid artery or the internal jugular vein) during the wearing of the wearable device 1. As a result, the electrical signal received via the conductive element 22a may be different from the electrical signal received via the conductive element 22b. The electrical signals received via the conductive elements 22a and 22b may be used as a positive potential reference and a negative potential reference, respectively, or vice versa.

[0041] A large potential difference (or variation, gap) between the positive potential reference and the negative potential reference helps to remove uncorrelated noise that may be present in the electrical signal. Therefore, according to the present invention, since the conductive elements 22a and 22b are provided at different distances from the upper portion 21t, a good signal-to-noise ratio can be obtained, and the electrical signal collected by the conductive elements of the ear tip 2 can be enhanced.

[0042] In some conventional methods, since the ear tip is coated with a continuous conductive coating, it may be damaged or distorted by constant friction, resulting in inaccurate collected electrical signals. In contrast, according to the present invention, the conductive elements 22a and 22b are protected by the main body 21. Therefore, the problems existing in the conventional methods can be solved.

[0043] Furthermore, unlike the electrical detection method according to the present invention, in some conventional methods, biologically relevant information may be collected via a light sensing element. However, since light can be variable, the collected data may be affected and measurement errors may occur. For example, if insufficient light is reflected in the user's ear canal, the collected data may be insufficient or inaccurate. By collecting data with the electrical detection method, the problems existing in the conventional methods can be solved.

[0044] Refer to FIG. 2A. FIG. 2A is a top view of an ear tip according to some embodiments of the present invention. In some embodiments, the ear tip 2 of FIG. 1 may be a cross-sectional view of the ear tip of FIG. 2A along line AA'.

[0045] As shown in FIG. 2A, the conductive element 22a is provided so as to approach the upper part 21t, and the conductive element 22b is provided so as to approach the bottom part 21m.

[0046] In some embodiments, the conductive elements 22a and 22b are partially overlapped in a top view. For example, the conductive elements 22a and 22b are partially overlapped in the direction from the central part 21a to the tail part 21b. For example, the conductive elements 22a and 22b are partially overlapped in the direction from the upper part 21t to the bottom part 21m. For example, the conductive elements 22a and 22b are partially overlapped in the radial direction of the central part 21a.

[0047] In some embodiments, as shown in FIG. 2A, the conductive element 22b and the conductive element 22b1 are separated from each other. In some embodiments, the conductive element 22b and the conductive element 22b1 are partially overlapped in the direction surrounding the central part 21a. For example, the conductive element 22b and the conductive element 22b1 are partially overlapped in the tangential direction of the central part 21a. For example, the circumference of an imaginary circle with center O and radius equal to R can intersect or pass through the conductive element 22b and the conductive element 22b1.

[0048] In some embodiments, the central angle formed by two adjacent conductive elements (for example, conductive element 22b and conductive element 22b1) may be less than 180 degrees, less than 120 degrees, less than 90 degrees, less than 60 degrees, less than 30 degrees, or less.

[0049] In some embodiments, conductive elements 22a and 22b can include electrodes. In some embodiments, the ECG signal may be measured based on an electronic signal received from the electrodes of ear tip 2. The greater the number of electrodes on ear tip 2 (and thus the more data that can be collected, processed, and calculated), the more useful it is for correcting the collected signal, removing noise, and improving the accuracy of the generated data. For example, the potential difference between conductive element 22a, conductive element 22b, and conductive element 22b1 helps in removing uncorrelated noise and enhancing the collected electrical signal.

[0050] The positions and numbers of the conductive elements within ear tip 2 shown in the drawings are for illustrative purposes only and are not intended to limit the present invention. For example, depending on the design requirements, ear tip 2 may accommodate any number of conductive elements. For example, the conductive elements within ear tip 2 can be provided at any position according to the design requirements.

[0051] Refer to FIG. 2B. FIG. 2B is a top view of an ear tip according to some embodiments of the present invention. The ear tip in FIG. 2B is similar to ear tip 2 in FIG. 2A. The differences between the two will be described below.

[0052] The ear tip in FIG. 2B further includes a thermistor 22c provided within the body 21. In some embodiments, the thermistor 22c can be in continuous contact with the human body to reach thermal equilibrium while the user is wearing it, and the temperature of the user can be obtained by measuring voltage and / or resistance using the thermistor 22c. Thus, since the temperature of the user is obtained by an electronic detection method, the temperature measured by this method is more accurate than the temperature obtained by a light sensing element such as an infrared ear thermometer.

[0053] Refer to FIG. 2C. FIG. 2C is a top view of an ear tip according to some embodiments of the present invention. The ear tip of FIG. 2C is similar to the ear tip 2 of FIG. 2A. The differences between the two will be described below.

[0054] The ear tip of FIG. 2C further includes a capacitance sensor 22d provided in the main body 21. In some embodiments, the capacitance sensor 22d includes a voltage and / or capacitance sensing area. In some embodiments, the capacitance sensor 22d includes a proximity sensor. In some embodiments, the capacitance sensor 22d can detect nearby objects by means of an electric field generated by the capacitance sensor 22d. In some embodiments, the electrical signal received via the capacitance sensor 22d can trigger the sensing of other biologically relevant information. For example, the conductive elements 22a and 22b can use the electrical signal received via the capacitance sensor 22d as a trigger. Similarly, the thermistor 22c of FIG. 2B can use the electrical signal received via the capacitance sensor 22d as a trigger. For example, a controller associated with the capacitance sensor 22d may be configured to turn on or off the conductive element in response to the electrical signal received via the capacitance sensor 22d. For example, a controller associated with the capacitance sensor 22d may be configured to turn on the conductive element, and the conductive element starts collecting information. By using the capacitive sensor 22d as a switch, the data collection function can be enabled only when the ear tip is worn. Thereby, energy can be saved.

[0055] Refer to FIG. 2D. FIG. 2D is a top view of a used ear tip according to some embodiments of the present invention. The ear tip of FIG. 2D is similar to the ear tip 2 of FIG. 2A. The differences between the two will be described below.

[0056] The ear tip is close to blood vessel 11 (for example, the internal carotid artery or the internal jugular vein), and its position provides an anatomical position with a potential different from that of other parts of the human body. Furthermore, the greater the potential difference, the better the signal-to-noise ratio. Since some electrodes in the main body 21 are close to other electrodes, they help to form a larger potential difference. Therefore, the electrical signal is enhanced and the accuracy is improved.

[0057] In some embodiments, the conductive elements 22a and 22b (or electrodes), the thermistor 22c, and / or the capacitive sensor 22d can be embedded in the main body 21 as needed based on the design requirements.

[0058] FIGS. 3A, 3B, and 3C are cross-sectional views of an ear tip according to some embodiments of the present invention.

[0059] The ear tips in FIGS. 3A, 3B, and 3C are similar to the ear tip 2 in FIG. 1. Hereinafter, the description of similar or identical elements will be omitted.

[0060] In FIG. 3A, the conductive element 22e is completely embedded in the main body 21. The conductive pad 23 is partially exposed from the inner surface 21s3 of the central portion 21a. In FIG. 3B, the conductive element 22e is partially exposed from the outer surface 21s1 of the tail portion 21b. In FIG. 3C, the conductive element 22e is partially exposed from the inner surface 21s2 of the tail portion 21b.

[0061] In some embodiments, the conductive element 22e may be the conductive elements 22a, 22b (or electrodes), the thermistor 22c, or the capacitive sensor 22d. In some embodiments, the installation, relative width, or thickness of the conductive element may be designed according to the design requirements.

[0062] Referring to FIGS. 4A and 4B. FIG. 4A is a cross-sectional view of a wearable device 4 according to some embodiments of the present invention. FIG. 4B is a top view of the wearable device 4. The wearable device 4 in FIG. 4 is similar to the wearable device 1 in FIG. 1. Hereinafter, the differences between the two will be described.

[0063] The ear tip 2 of the wearable device 4 includes a protrusion 41 having a shape corresponding to a recess defined in the housing 3. The protrusion 41 may be used as a position restraint element when fitting the housing 3 into the ear tip 2. In some embodiments, the protrusion 41 helps to quickly and accurately identify the conductive pad 23 that is about to contact the conductive pad 31. In some embodiments, the protrusion 41 can prevent vertical displacement or shift that may result in incorrect contact between the conductive pad 23 and the conductive pad 31. In some embodiments, the protrusion 41 can prevent horizontal displacement or shift (or circular rotation) that may result in incorrect contact between the conductive pad 23 and the conductive pad 31. In some embodiments, the protrusion 41 can engage with a recess defined in the housing 3. In some embodiments, the protrusion 41 may be non-rotatably provided in a recess defined in the housing 3.

[0064] The position and number of the protrusions 41 shown in FIGS. 4A and 4B are for illustrative purposes only and are not intended to limit the present invention. For example, any number of protrusions 41 may be provided according to design requirements. For example, the protrusion 41 may be provided at any position according to design requirements. For example, the central angle formed by two protrusions may be less than 180 degrees, less than 120 degrees, less than 90 degrees, less than 60 degrees, less than 30 degrees, or less.

[0065] Similarly, the position and number of the recesses defined in the housing 3 are for illustrative purposes only and are not intended to limit the present invention. In some embodiments, the protrusions 41 may have different shapes or sizes from each other for error prevention.

[0066] In some embodiments, the buckle portion 3t and / or the bottom 21m of the housing 3 may be used (alone or in combination with the protrusion 41) as a position restraint element when fitting the housing 3 into the ear tip 2.

[0067] Refer to FIG. 5A. FIG. 5A is a cross-sectional view of a wearable device 5 according to some embodiments of the present invention. The wearable device 5 in FIG. 5A is similar to the wearable device 1 in FIG. 1. The differences between the two will be described below.

[0068] The housing 3 of the wearable device 5 includes a conductive pad 51 that surrounds or encircles a part of the housing 3 that is adapted to fit into the ear tip 2 of the wearable device 5. The annular conductive pad 51 can be aligned with the conductive pad 23 of the ear tip 2 in one direction (such as height) without worrying about data loss during the rotation of the ear tip 2.

[0069] Refer to FIG. 5B. FIG. 5B is a top view of an ear tip 5' according to some embodiments of the present invention. The ear tip 5' in FIG. 5B is similar to the ear tip 2 in FIG. 2A. The differences between the two will be described below.

[0070] The ear tip 5' includes a plurality of conductive pads 52 that are separated from each other. The plurality of conductive pads 52 are provided so as to surround or encircle a part of the housing 3 that is adapted to fit into the ear tip 5'. For example, two conductive pads 52 are at least partially overlapped in a direction surrounding the ear tip 5' (for example, a direction surrounding the central part of the main body of the ear tip 5').

[0071] The wearable devices shown in FIGS. 4, 5A, and 5B have specific corresponding configurations between the ear tip and the housing. However, the ear tip according to the present invention may be designed to be adapted to any other type of housing and is not limited to the structures disclosed therein.

[0072] FIGS. 6A, 6B, and 6C show a wearable device (for example, the wearable device 1) according to some embodiments of the present invention in accordance with the usage situation.

[0073] As shown in FIG. 6A, the left and right sides of the wearable device 1 are connected via a wire or cable 6. An ECG can be generated using the electrical signals received from the left and right ears.

[0074] As shown in FIG. 6B, the ECG patch 61 may be used in combination with the wearable device 1. The ECG patch 61 may be attached to the user's chest. The ECG patch 61 and the wearable device 1 may be provided at anatomical positions having sufficiently different potentials so as to obtain a good signal-to-noise ratio.

[0075] As shown in FIG. 6C, the ECG patch 62 may be used in combination with the wearable device 1. For example, the user's left hand and / or right hand may be in an anatomical position used in combination with the wearable device 1.

[0076] FIG. 7 is a block diagram of a device or device (e.g., an ECG machine) coupled to an earphone (e.g., the wearable device 1) according to some embodiments of the present invention. Hereinafter, one or more operations of the process flow of the system diagram shown in FIG. 7 will be described with reference to FIG. 8.

[0077] The electrical signal can be collected or received by conductive elements (e.g., conductive elements 22a and 22b (or electrodes), thermistor 22c, capacitive sensor 22d) on the left and right ear tips, conductive elements not located on the ear tips (e.g., ECG patches 61 and 62), or combinations thereof.

[0078] Each conductive element is coupled to an input buffer respectively. The input buffer may include a high-impedance amplifier. The input buffer can be configured to match the high impedance of the conductive element to the relatively low impedance of the wire. In some embodiments, the input buffer is configured to perform noise cancellation of the signals received from the conductive elements 22a and 22b or other conductive elements.

[0079] The electrical signal output from the input buffer is transmitted to an amplifier. In some embodiments, the amplifier may be a single-ended amplifier or a differential amplifier. The amplifier can be configured to improve the signal-to-noise ratio (SNR) of the electrical signal by amplifying the difference between electrical signals (e.g., potential difference) and removing uncorrelated noise. Next, the electrical signal can be coupled to an ECG machine to measure and derive ECG information. In some embodiments, the number of input buffers and amplifiers is determined based on the number of conductive elements (or electrodes) of the ear tip and the conductive elements not located on the ear tip (e.g., ECG patches 61, 62).

[0080] Spatial relative terms such as "directly below", "below", "lower", "above", "upper", "left", "right", etc. used herein may be used for the convenience of description to explain the relationship between a certain component or feature and other component(s) or feature(s) as shown in the drawings. These spatial relative terms are intended to encompass various orientations of the device in use or operation in addition to the orientation shown in the drawings. The device may be oriented in other ways (rotated 90 degrees or other orientations), and the spatially relative descriptors used herein may be interpreted accordingly. It should be understood that when an element is referred to as being "connected" or "coupled" to another element, it may be directly connected or coupled to the other element, or intervening elements may be present.

[0081] As used herein, the terms "about," "substantially," "substantial," and "approximately" are used to account for and mean minor variations. When used in conjunction with a circumstance or situation, these terms refer to both when the circumstance or situation occurs exactly as such and when the circumstance or situation occurs approximately. When used in conjunction with a given value or range herein, the term "about" generally means within ±10%, ±5%, ±1%, or ±0.5% of the given value or range. In this specification, a range can be expressed as from one endpoint to the other endpoint or as a range between two endpoints. All ranges disclosed in this specification include their endpoints unless otherwise specified. The term "substantially the same plane" refers to two surfaces that are along the same plane and the difference therebetween is in micrometers (μm), for example, the difference is within 10 μm, within 5 μm, within 1 μm, or within 0.5 μm along the same plane. When a numerical value or characteristic is said to be "substantially" the same, this term refers to a numerical value where the difference is within ±10%, ±5%, ±1%, or ±0.5% of the average value.

[0082] Above, the features and detailed forms of some embodiments of the present invention have been outlined. The embodiments described in the present invention can be immediately used as a basis for designing or modifying other processes and structures for performing the same or similar purposes and / or achieving the same or similar advantages of the present embodiments. Such equivalent structures do not depart from the spirit and scope of the present invention. Also, various changes, substitutions, and modifications are possible without departing from the spirit and scope of the present invention.

Claims

1. A body including a central portion having an upper part and a tail extending from the upper part of the central portion, a first conductive element at least partially embedded in the body, and a second conductive element at least partially embedded in the body and spaced apart from the first conductive element, wherein the first conductive element is close to the upper part of the central portion and the second conductive element is far from the upper part of the central portion, an ear tip.

2. The ear tip according to claim 1, wherein the first conductive element and the second conductive element at least partially overlap in a direction from the central portion toward the tail.

3. The ear tip according to claim 1, further comprising a plurality of conductive elements at least partially embedded in the body and spaced apart from each other, and two of the conductive elements at least partially overlap in a direction surrounding the central portion of the body.

4. The ear tip according to claim 3, wherein a central angle formed by two adjacent conductive elements is less than 180 degrees.

5. The ear tip according to claim 1, wherein the first conductive element is closer to the user's internal carotid artery or internal jugular vein than the second conductive element while the user is wearing it.

6. The ear tip according to claim 1, wherein the first conductive element and the second conductive element are surrounded by the tail of the body.

7. a first conductive pad surrounded by the central portion of the body, and a conductive wire connected between the conductive pad and the first conductive element, the ear tip according to claim 6.

8. The central portion of the body has a bottom opposite to the upper part of the central portion, and the bottom of the central portion is configured to receive a housing, the ear tip according to claim 1.

9. The ear tip according to claim 1, wherein at least one of the first conductive element and the second conductive element is completely embedded in the body.

10. The ear tip according to claim 1, wherein a part of the first conductive element and a part of the second conductive element are exposed from the body.

11. The ear tip according to claim 1, wherein the first conductive element and the second conductive element include an electrode, a thermistor, or a capacitive sensor.

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