W11 Wireless Music Streaming Audio Adapter 2-in-1 Car Bluetooth 5.3 Transmitter Receiver 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 connection stability, faster pairing, and enhanced audio quality 3.Wireless Transmission:Converts your cars FM system 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 MP3 players, making it versatile for different audio sources 5.Compact Design:With a sleek, modern appearance that complements any vehicle interior Specifications: 1.Model: W11 2.Material: ABS plastic with zinc alloy frame 3.Bluetooth Version: 5.3 4.Charging Voltage: 5V 5.Transmission Distance: 5-10 meters 6.Operating Temperature: 0-55 degree centigrade 7.Battery: Built-in 120mAh lithium battery