Just plug this mic and speaker headset into the mic/headphone jack on a compatible UHF CB and you have instant hands-free communications. Add a second set and use it as a bike to bike or rider to pillion intercom. Designed to fit into a full-face helmet with the included self-adhesive hook/loop mounts, it can be easily removed from your helmet when not in use. It also has a push-to-talk button that mounts on the handlebar with a sturdy hook/loop strap and can also be removed when not in use.
or can be used with any unit with a mic/headphone jack.
 
Suitable for the following Digitalk and Digitech transceiver
 
PMR-SP8081
PMR-2
PMR-21
PMR-SP2302AA
PMR-8228/U
PMR-81U
PMR-81V
DC1027
DC1049
DC1065
DC1096

Headset cable length: 1.6m
PTT button cable length: 1.3m