version PowerSet Scala Rider G4-Two headsets in one package Intercom up to 4-way (communication up to 1.6 km in full duplex mode) The intercom scala-rider G4 can be used in 4 ways (2 drivers and 2 passengers), 3-way (3 riders on different bikes), 2-way (between two drivers or between a driver and his passenger) or mode with the audio conference phone (driver, passenger, third). Connectivity to multiple devices ("MDC" Multiple Device Connectivity) Scala-rider G4 provides communication intercom with two other scala-rider G4 users with a Bluetooth device including: phone (directly or with a GPS device), GPS device, adapter, or A2DP-enabled MP3 player and FM radio integrated or external MP3 player connected via cable. If the scala-rider G4 is connected only to another scala-rider G4, can be connected with two Bluetooth devices (instead of one) of those above. Priority management It is not necessary to manually disconnect the intercom, or stop listening to the music to receive incoming calls or GPS instructions! Also available in cabled Scala-rider G4 is also available with a microphone cable, which fits perfectly well to-face helmets with a profile very tight. Fully compatible with all models of earphones Scala-Rider