Work with the following Motorola Radios: HT750, HT1250, HT1250LS, HT1550, HT1550XLS PTX700, PTX760, PTX780 MTX850, MTX850LS, MTX8250, MTX8250LS, MTX950, MTX9250 PRO5150, PRO5350, PRO5450, PRO5550, PRO5750, PRO7150, PRO7350, PRO7450, PRO7550, PRO7750, PRO9150 GP140, GP320, GP328, GP329, GP338, GP339, GP340, GP360, GP380, GP640, GP650, GP680, GP1280