1. Features: 1.1 Dual USB Fast Charge: Can charge multiple mobile phones at the same time. 1.2 Music Playback: Wireless pairing 5.0 transmission is undistorted, advanced noise reduction technology ensures sound quality, and the sound is clear. You can play music on the car stereo via wireless pairing, USB flash drive (32GB), or TF card (32GB). Note: U disk or TF card supports WMA, MP3, WAV, APE, FLAC music formats. 1.3 Hands-free Call: Built-in microphone and noise suppression CVC technology, make hands-free calls clearer, automatically switch from music playing state to hands-free state when answering. One-click answer/end call. Driving is easy. 1.4 Wide Compatibility: Wireless pairing FM transmitter supports all devices that support wireless pairing, suitable for iPad, iPhone, Google, LG, Tablet, Android and other devices with wireless pairing connection, easy to set up and use. 1.5 7 Colors RGB LED Backlight: This wireless pairing radio transmitter supports 7 colors LED backlight, you can get a visually stunning color display. 2. Specification: Name: Car Bluetooth Transmitter Bluetooth Version: V5.3 Charging interface: Support USB 3.1A + 1A fast charging PD interface: Support PD30W fast charge One-key power on and off: Support one-key soft power off Luminous lights: Support RGB lights Hands-free function: Bluetooth-compatible hands-free calling Stereo: Support Bluetooth stereo music DSP technology Frequency: 87.5-108.5mhz Voltage: 12V Special Features: MP3, Hands Free, FM Transmitters 3. Package includes: 1*Bluetooth FM transmitter 1*User Manual 4. Notice: Manual measurement please allow 1-2cm size error. Due to different lighting and display equipment, the actual color and picture of the product may be different, thank you for your understanding.