①. Features: 1Dual USB Fast ChargeCan charge multiple mobile phones at the same time. 2Music 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 32GBTF card 32GB. Note: U disk or TF card supports WMA MP3 WAV APE FLAC music format. 3Hands-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 answerend call. Driving is easy. 4Wide 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. 57 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; Special Features: Hands Freee; Special Features: 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.