Point Source Audio CM-PTT-M1 Push-To-Talk For CM-I Comms Headset To Motorola Radios With 2-Pin Plug ConnectorThe CM PTT combines your intercom system and a Motorola portable two way radio on a single CM i headset. No more fumbling between two discrete systems or removing your headset to use a radio. Simply engage the push to talk to switch from comms to radio and back. Compatible with most comms systems and Motorola radios using 2 pin plug connector. Features Works with CM i3 & CM i5 Audio Headsets Large Push to Talk Button Active Listening on Both Systems