Uclear Uclr Hbc100D Plus Dual 211221 The HBC100 Plus and HBC100 Plus Dual offers the absolute best in small group intercom between up to four people, delivering over a one mile range at an affordable price. Full-duplex intercom system allows four riders to communicate at a distance of up to 500 meters each, while our Multi-Hop Technology extends the range up to 1.2 miles with four riders connected. The boomless microphone and patented beam forming technology isolates the voice and eliminates background noise, so you can be heard ev Two HBC100 Plus control units One stereo speaker set with embedded microphones One USB charging cable Two permanent helmet mounts