Each headset RS-60CF requires a separate connection cable, suitable for the radio. On the headphone side, the cable is equipped with a professional micro XLR connector. On the radio side the appropiate connectors for phones and microphone are used. Integrated into the cable is a selector switch Stereo/Mono. PTT keying is done by the PTT button on the side of the headset, by Vox or by a separate PTT key via the accessory PTT connection, see below. Only a few connecting cables offer a PTT branch, the partnumber then ends in 'PT'.