Bluetooth communication system with Bluetooth 5.2 technology. Groups of up to 4 participants are possible, easy connection setup to other manufacturers or Interphone devices, intercom-compatible with Sena, TFT and GPS systems. Interphone UNITE app for easy configuration and control of intercom functions, display of the installed firmware version and availability of new versions, display of the battery charge status in percent, selection of audio equalizer presets, automatic volume control. Bluetooth connection to smartphones, navigation systems and other Bluetooth devices, conversation between the intercoms with background sound from GPS functions / music, audio playback (A2DP / AVRCP) from smartphones, vehicle multimedia systems (tft), MP3 players and other Bluetooth players, windproof directional microphone. 38 mm speakers, range up to 1000 m, active talk time 15 h (variable duration with background music / GPS), Waterproof IP67, black. Scope of delivery: Clip holder, 38 mm speakers, boom microphone (jet and modular helmets), USB-C cable for charging and connecting to the computer. Item article design communication system main color black protection class IP67 variation dual kit transmission standard Bluetooth 5.2