Model:B35; Connection: Wireless 2.4 G Hz, Bluetooth; Type: Helmet Headsets; Helmet Style: Full Face; Function: Stereo, Waterproof; Bluetooth Version:4.1; Compatibility: Motorcycle; Distance:50; Brand:LITBest; Frequency:2.4; Listing Date:04/21/2020; Production mode: External produce; Special selected products:COD