Memory enhancing learning machine
A technology that enhances memory and learning machines, is applied in the field of learning appliances, and can solve problems such as ambient noise
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Embodiment 1
[0010] The sound insulation device on the microphone can adopt the umbrella structure to realize its contraction and expansion function. The sound insulation device can be installed on the microphone like an inverted umbrella, and when opened, the mouth of the umbrella just covers the mouth and nose of the human body. When not in use, it can be folded and shrunk over the microphone.
Embodiment 2
[0012] The sound insulation device on the microphone can use the sleeve structure to realize its contraction and expansion functions. The sound insulation device can be composed of two or more upper and lower sleeves, and the inner smallest sleeve is fixed on the microphone. When the sleeve is pulled upwards, the sleeves at all levels form a horn-shaped cavity, and the horn mouth can cover the mouth and nose of the human body. When not in use, push down on the sleeve and the various sleeves shrink over the microphone like a collapsible fishing rod.
Embodiment 3
[0014] The sound insulation device on the microphone can be made of a cavity made of high elastic memory material that can be bent arbitrarily. The bottom of the cavity is fixed on the microphone, and the mouth of the upper part of the cavity can just cover the mouth and nose of the human body. When not in use, the microphone can be passed through the cavity, and at the same time, the highly elastic cavity wall can be turned outward and downward by hand to form an elastic sleeve to shrink on the microphone. Conversely, pull up the cover to restore a cavity-like sound insulation device.
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