MFJs Featherweight Earphone Microphone has an earbud earphone and a tiny thumb-size microphone/PTT switch thats built right into the cord. Its barely noticeable and so light-weight you wont even know its there. Get crystal clear receive/transmit audio out of an ultra lightweight (30 grams) speaker. Non directional electret condenser mic has -63dB sensitivity, 1.1K Ohm impedance. 4 foot cord. First ICOM, Yaesu and compatibles
