This adapter allows the use of any 1pin visar accessory to be used on radios .
Plug on and use, no driver/software is needed to use audio accessories.
100% compatible with all original equipment manufacturer (OEM) parts.
Comes with a cover to protect against dust and dirt.
Compatible with radios:GP328Plus GP329Plus GP338Plus GP628Plus GP638Plus GP344R GP366R GP388R GP644R GP666R GP688R EX500 EX560 EX560XLS EX600 EX600XLS PRO5150 Elite PRO7150 Elite PTX700 Plus PTX760 Plus

This adapter allows the use of any Visar 3.5mm Audio Adapter accessory to be used on radios listed below;
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