Interface:Micro USB; Model: BT-12; Connection:Bluetooth; Card Port:USB Port; Type:Helmet Headsets; Compatible Vehicle & Brand:Motorcycles; Style:Ear hanging style; Certification:RoHS,CE; Helmet Style:Half Helmet; Function:Waterproof,Stereo,Bluetooth,Multi-Output; Sound Channel:2.0 ...Interface:Micro USB; Model: BT-12; Connection:Bluetooth; Card Port:USB Port; Type:Helmet Headsets; Compatible Vehicle & Brand:Motorcycles; Style:Ear hanging style; Certification:RoHS,CE; Helmet Style:Half Helmet; Function:Waterproof,Stereo,Bluetooth,Multi-Output; Sound Channel:2.0; Bluetooth Version:Bluetooth 5.0; Talk Time:6; Standby Time:180; Compatibility:Motorcycle; Distance:10; Listing Date:04/12/2023; Motorcycle Bluetooth 5.0 Helmet Intercom Wireless Hands-free Telephone Call Kit Stereo Anti-interference Interphone Music Player