Audio Adapter Earpiece Headset PTT Mic for Motorola GP344 GP328PLUS EX500 to 2 Pin CP040 DEP450 Connector
Plug on and use, no driver/software is needed to use audio accessories.
Compatible with below radios:
GP344 GP388 GP644 GP688 GP328Plus GP329Plus GP338Plus GP628Plus GP638Plus GP344R GP366R GP388R GP644R GP666R GP688R EX500 EX560 EX560XLS EX600 EX600XLS PRO5150 Elite PRO7150 Elite PTX700 Plus PTX760 Plus GL2000  
Notice: If your walkie-talkie type is not in the list above, please see my other items or email us your model number, then, we will help you find one that suits for you.