W10 Car Stereo Wireless Connection Audio Adapter 2 in 1 Car Bluetooth 5.3 Receiver Transmitter 1.Dual-Function Bluetooth Adapter：This 2-in-1 device functions as both a transmitter and receiver, enabling wireless audio connectivity for your car stereo system 2.Advanced Bluetooth 5.3：Featuring the latest Bluetooth 5.3 technology for improved connectivity, faster pairing, and enhanced audio quality 3.Wireless Audio Adapter：Converts your cars stereo into a Bluetooth-enabled system, allowing you to stream music and calls wirelessly from your smartphone 4.Wide Compatibility：Suitable for various devices including smartphones, tablets, and car audio systems, bridging the gap between older car stereos and modern mobile devices 5.Compact Design：The sleek and compact form factor ensures a seamless integration with your cars interior Specifications: 1.Material: ABS plastic 2.Charging Voltage: 5V 3.Transmission Distance: 5-10 meters 4.Operating Temperature: 0-55 degree centigrade 5.Bluetooth Version: 5.3 6.Battery: Built-in 120mAh lithium battery