BiT-3 is a Bluetooth headset for helmets with an intercom that will communicate to one other device. Connect to your mobile phone's Bluetooth to make calls, listen to music & navigation. BiT-3 will do a 1:1 intercom connection to another BiT-3 device or use Universal Pairing to another Bluetooth intercom from a different manufacturer. Great for motorcycles, snowmobiles, UTV Side by sides, and ATVs. Twin Pack is a set of 2 complete BiT-3 kits.