U-CLEAR HBC200 Dual Force Bluetooth Communicator New for 2012 and featuring Boomless ABF Technology, UCLEAR HBC200 Force introduces Super Group Intercom and Multi-Hop technology, specifically designed for group communications with full duplex intercom. Multi-hop technology, used in military tactical communications provides superior sound quality and connection stability over Bluetooth intercom systems that suffer from interference and are line of sight dependent. By incorporating Multi-hop technology, each Uclear HBC200 control unit works as a repeater or relay station, enabling the network to grow as more control units/riders are added to the group. Depending on riding conditions, the intercom range between two riders is up to 700 meters. Adding a third unit/rider increases the intercom range up to an additional 700 meters. Add a fourth rider and the entire group can communicate up to 2100 meters (1.3 miles) in full duplex intercom mode. Features Music, Calls, GPS (Bluetooth devices) Super Group Intercom (Full Duplex 4 riders) Multi-Hop Communication Extender (up to 700 meters between units or 2100 meters (1.3 miles) between four units.) Voice command for hands-free call pickup Hi-Fi stereo audio (AVRCP, A2DP) Boomless microphone (Industry first) Patented ABF / DSP technology isolates your voice and eliminates all background noise Firmware upgrades available Auto loudness adjustments GPS device compatible (Bluetooth HS/HFP profile required) One USB/Wall charger, two USB cables (Dual pack only) Easy installation on any helmet including full face or 3/4 helmets One year manufactures warranty