2 Wire Earphone kits with Vox function
Lightweight earphone,rubber ear tip
Low profile, flexible, transparent acoustic tube
Quick disconnect earphone adapter for easy replacement of any component
Flexible, high grade Kevlar cable for demanding applications

Speaker
Dimensions: 16.2 +/- 0.2mm
Impedance: 250 +/- 50 Ohm
Sound pressure: 104 +/- 2dB

Microphone
Type: electret condenser
Impedance: 2.2 kOhm
Operating voltage: 1.1 – 10VDC

Compatible:
Motorola GP Series: GP140, GP320, GP328, GP329, GP338, GP339, GP340, GP360, GP380, GP640, GP650, GP680, GP1280