Does not included a push-to-talk button on the adapter. For 3.5mm threaded jack audio accessories including earpieces and surveillance kits.

Adapter is compatible with the following Motorola Radio models: HT750, HT1250, HT1250LS, HT1550, HT1550XLS, MTX850, MTX850LS, MTX8250, MTX8250LS, 850, 850LS, 9250, 950, 960, GP140, GP320, GP328, GP329, GP338, GP 339, GP340, GP360, GP380, GP640, GP680, GP1280, PRO5150, 5350, 5450, 5550, 5750, PRO7150, 7350, 7450, 7550, 7750, 9150 PTX700, 760, 780