Amazon.com: INTERPHONE Cellularline, 2 Motorcycle Intercoms with Mesh Communication, Model U-Com 8R, Up to 24 Riders, Distance 1.6 Km, Range 18 Hours, ,Interphone Cellularline, Motorcycle Intercom with Bluetooth and Mesh Communication, Model U-Com 16, Up to 4 Motors, Distance 1.6 Km, Compatible with Sena, OEM, GPS, Waterproof, Universal : Electronics - Amazon.com,Amazon.com: INTERPHONE Cellularline, 2 Motorcycle Intercoms with Mesh Communication, Model U-Com 8R, Up to 24 Riders, Distance 1.6 Km, Range 18 Hours, ,Amazon.com: INTERPHONE Cellularline, 2 Motorcycle Intercoms with Mesh Communication, Model U-Com 8R, Up to 24 Riders, Distance 1.6 Km, Range 18 Hours, ,Amazon.com: Interphone Cellularline, 2 Motorcycle Intercoms with Bluetooth and Mesh Communication, Model U-Com 16, Up to 4 Motors, Distance 1 Km, Compatible with Sena, OEM and GPS, Waterproof, Universal : Electronics