Scala Rider G4 PowerSet (discontinued) Motorcycle Intercom communication for bikers
Cardo Systems Launches New Upgraded scala rider G4 PowerSet for Snowmobiles Microphone gain adjustment enables use with both Snowmobiles, motorcycles for intercom, MP3 music, mobile phone and GPS | SnoWest Magazine
Scala Rider G4 Intercom - webBikeWorld
User manual Cardo Scala Rider G4 (English - 27 pages)