Motorola Original AARMN4019A: Medium Weight Headset. Noise-canceling boom microphone. Has in-line PTT(push to talk) switch on cable. Noise reduction rating of 24dB, FM approved. Does not require adapter cable. Receive volume is controlled by radio knob. Radio speaker is muted when headset is attached to radio. Can only used with below listed radios.

Fits:HT750,HT1250,MTX850,MTX8250,MTX950,MTX9250.

NOTE: To avoid confusion, for ordering purposes, the suffix letter after the stock number is not listed.