Radio-tone Radio Over Zello Controller RT-ROIP1 With Cable for Baofeng Kenwood Handheld Radio Package Include :  RT-RoIP1 X 1  USB Cable X 1  K Adaptor Cable X 1  English User Manual Install in a second, no IT expert technique is required Build-in high quality USB audio CODEC, supports both Windows XP/Vista/Windows 7 and Mac OS Build-in analog interface for supporting unrecognized OS Works with most popular handheld radios