Features1. Bluetooth 5.3 Stable transmission---Newly upgraded Bluetooth 5.3 chip, more stable multi-data transmission Wider wireless coverage.2. TF card plug and play---Patented one-piece card slot design.Compatible with various brands of TF card can be used.3. AUX+FM Output---Support two outputs in receive mode, just to bring a better product experience.4. With LED design---Can clearly display the status of listening channel anytime and anywhere.5. Universal for all models---After connecting for the first time, turn off the vehicle and start it again.The device will automatically boot back to the connection.6. Suitable for all kinds of mainstream vehicles, FM87.5~108MHZ adjustable.Product Specifications:Name: USB Bluetooth FM TransmitterModel: W3Bluetooth Version: 5.3Transmission Distance: 10~15mBluetooth Protocol: A2DP/AVRCPAudio output: FM transmitterDefault frequency: 95.0MHZSignal-to-noise ratio: 95dbAnswer the call: supportAutomatic return: supportTF card: supportAUX: supportPower supply mode: usb power supply (5V)Compatible with: Personal computers, Android system, ioS system cellphones, tablets and other Bluetooth devices, as well as audio equipment with audio input interfacePackage includes:1x Bluetooth car kit