The Scala Rider Q2 is the definitive game-changing communication product on the market today. Building on the successful scala rider line of Bluetooth helmet mounted headsets, Cardo Wireless has now introduced the highly anticipated scala rider Q2 headset. This innovative new unit allows true bike to bike communication, as well as an assortment of other useful features. Bike-to-Bike intercom communications among up to three bikers within a range of up to 500 m / 1,640 ft. Rider-to-Passenger communicationsPassenger may also conduct mobile phone calls or listen to the FM radio independently. Full Duplex No longer the walkie-talkie syndrome where one party can only speak when the other is silent. The scala-rider Q2 allows simultaneous speaking and listening between bikers and passengers. Full Backward compatibility with Scala Rider Headsets MULTIPLE CONNECTIONS To a Mobile Phone receive incoming calls by voice command and initiate calls by one-button push and voice command To a GPS unit receive audio instructions via headset To other scala-rider Q2 Headsets Communicate in parallel with up to two other scala-rider Q2 headsets within a range of up to - 500 m / 1,640 ft. Communicate with a scala-rider headset within a range of 10 m / 33 ft. NOTE The Q2 can only communicate with Bluetooth enabled devices Includes One scala-rider Q2 headset Dual speaker Helmet Clamp Mount Dual Voltage Wall Charger Microphone sponges Allen Wrench Multi-language User Manual NOTES Supports MP3 through jack on base The Q2 is mono, not stereo Does NOT support A2DP (stereo) Bluetooth protocol. NOT COMPATIBLE WITH GARMIN NUVI SERIES GPS