Feature:1. How It Works: This wireless Bluetooth car kit can connect to devices like your Bluetooth smartphone or tablet and can stream calls and music to your car's speaker system and the dash mounted receiver's built in microphone for handsfree call.2. Function: Transforms a car audio system into a Bluetooth wireless environment, enabling handsfree calling on the road and accessing music on mobile devices. Music player controls play, pause, previous song, next song, calls and more.3. Application: Bluetooth audio receiver is suitable for all cars with 3.5mm AUX input. Stream audio through the 3.5mm input in your car stereo to enjoy your favorite music in your car. Support Bluetooth mode HFP, HSP, A2DP, AVRCP.4. USB Charging Port Design: Bluetooth car kit is equipped with 5V/2.1A USB port, which can conveniently fast charge other USB devices, such as your mobile phone, tablet, camera, etc.5. Auto Power On: This bluetooth car kit will automatically power on when you start the car, then automatically sync with the last connected phone (please make sure the phone's bluetooth is turned on before starting the car).Specification:Item Type: Bluetooth Car KitMaterial: ABSInput: 12-24VUSB Output: 5V, 2.1AWorking Temperature: 0-60Signal To Noise Ratio: >90dBTHD: <0.05%Bluetooth Version: 5.0Support Bluetooth Mode: HFP, HSP, A2DP, AVRCPBluetooth Transmission Distance: <10 Meters.Package List:1 x Bluetooth Receiver1 x 3.5mm Extension Cord1 x ManualNote:The car kit requires a 3.5mm input jack in the car stereo