Communication bike-to-bike intercom up to 700 m * Interphone alternating between 2 other riders within a radius of 700 m *. Communication from Driver to Passenger Both the driver and passenger can communicate by intercom, run independently mobile phone calls, listen to FM radio built-in stereo or mp3 player. Integrated Technology PLC The technology integrated PLC (Packet Loss Concealment - Compensation of Loss of voice packages) allows real-time compensation for loss of audio in challenging environments and ensures that conversations are clearer than ever. Full Duplex Communication Enough with the "walkie-talkie syndrome" whereby only one person can speak while the other remains silent. SCALA RIDER Q2 Multiset PRO allows drivers and passengers to talk and listen simultaneously. Fully compatible with all models of earphones Scala-Rider SCALA RIDER Q2 MULTISET PRO EARPHONES FOR COMMUNICATION BETWEEN TWO RIDERS UP TO 700 METERS OF DISTANCE * Scala Rider Q2 MultiSet PRO provides riders a communication of excellent quality in intercom mode between two pre-paired headsets within a radius of 700m *. Scala Rider Q2 MultiSet PRO stands for various technological developments that provide a communication difficulty or without a hitch. The technology integrated PLC (Packet Loss Concealment - Compensation of Loss of voice packages) allows real-time compensation for loss of audio in challenging environments and ensures that conversations are clearer than ever. Thanks to MDC (Multiple Device Connection - Connecting multiple devices), SCALA RIDER Q2 Multiset PRO allows bikers to receive GPS instructions in speakerphone, communicate with other bikers or with the passenger in the back seat through the intercom, the make phone calls with your phone and listen to music and radio. The efficient management of priorities also avoids having to manually disconnect the intercom or listening to music to receive incoming calls or GPS instructions! The entertainment features now include A2DP stereo music wireless or cable connection to your MP3 player, plus an integrated FM radio with RDS. * Results may vary depending on the presence or absence of obstacles