When none of our fully wireless iriComm 3.0 solutions match your requirements, iriBelt is the next best thing you can get to being fully wireless. iriBelt connects to an iriInsert speaker/microphone combo, which is designed to fit in a Gecko MK11 marine safety helmet. For other helmet types, please contact us to hear about the posibilities. iriBelt MKII has two PTT buttons enabling remote activation of up to two external radios. Improved operational range with normal/long-range capabilities.