Electret condenser microphone which may be wired for handy-talkie, sound card, telephone, base station, aircraft radio, CB radio, motorcycle intercom, etc. An electret microphone is a type of electrostatic capacitor-based microphone, which eliminates the need for a polarizing power supply by using a permanently charged material. An earphone or miniature speaker may be installed in either or both muffs. The microphone unit can be easily removed and installed on another headset or helmet. Earphone Modification and Push-to-Talk Modification in Datasheet. Earphone Modification and Push-to-Talk Modification in application note.
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