UpBright® NEW Handheld PTT Remote Speaker Mic Microphone For Motorola Walkie Talkie Two-Way Radio Series; PMMN4021, PMMN4021A, PMMN4027, PMMN4027A, PMMN4039, PMMN4039A, HMN9052, HMN9052E, HMN9053, HMN9053B, HMN9053C, HMN9053E, BR950, GP140, GP240, GP280, GP318, GP320, GP328, GP340, GP329, GP338, GP339, GP360, GP380, GP540, GP580, GP640, GP650, GP680, GP960, GP1280, MTX850, MTX850LS, MTX850XLS, MTX900, MTX950, MTX960, GP600, MTX8250, MTX8250LS, MTS8250XLS, MTX9250, HT750, HT1250, HT1250LS, HT1550, HT1550XLS, PR860, PRO5150, PRO5350, PRO5450, PRO5550, PRO5750, PRO7150, PRO7350, PRO7450, PRO7550, PRO7750, PRO9150, PTX700, PTX760, PTX780, PTC780, XTS960, MTP700, MTP750 (3.5mm Jack for External Earphone)