Interface: USB+AUXBluetooth version: Bluetooth 5.0+EDRMicrophone: omnidirectional microphoneConnection distance: 10 meters without obstaclesPlaying time: 8 hours of continuous playbackBattery capacity: 300 mAhDimensions: 24*54*11mmAdvanced Bluetooth 5.0 Technology:This car bluetooth adapter can over A 3.5mm adapter can be connected, and the Bluetooth receiver adopts Bluetooth 5.0 technology, stable connection / fast transmission speed / long signal range / high sound quality.Wide Compatibility:The portable bluetooth stereo adapter can be paired with 2 devices at the same time. Compatible with most smartphones and Bluetooth electronic devices, ideal for home or car audio systems.Up to 8 hours of battery life:This Bluetooth adapter can be used for calls or music playback for up to 8 hours. Fully charge your device in just 1.5 hours with the included fast charging cable.Intelligent Noise Reduction Technology:Our bluetooth audio receiver uses the latest CVC8.0 noise reduction and digital signal processor (DSP) technology to bring you to help suppress echoes and block out disruptive background noise such as wind, traffic or crowds. Provides a clear ring tone.Hands-free calls and navigation:A built-in microphone helps you with hands-free calls. One-touch function allows you to answer/repeat/hang up/reject calls while driving, and the Bluetooth audio adapter supports voice prompt transmission via existing navigation apps. Make sure you drive safely