A battery holder uses a resilient positioning member to accommodate either one large or two small batteries in a wireless device.
Self-actuating piezoelectric valve opens relief port to absorb air burst impact, preventing diaphragm damage from acoustic shock.
Flexible wire positions microphone along auricle to measure ear canal transfer characteristics without blocking the ear canal.
A microphone array generates spatial distribution information from phase differences to identify overlapping speech signals.
A multifunctional Bluetooth microphone integrates a touch screen interface with dual-channel reception for voice signal processing.
Differential axial and radial spring stiffness isolates structure-borne sound while maintaining compact device volume.
A microphone assembly uses a movable inner sleeve to shift relative to an outer sleeve, altering sound hole exposure.
A hearing aid microphone cover uses oleophobic filtration media to block contaminants while allowing sound transmission.
Segmented adhesive sheets prevent membrane sagging and transducer contact, maintaining sound quality in compact electronic devices.