Description 1.Bluetooth 5.0 + Dual USB Charger: The FM transmitter adapter is equipped with Bluetooth 5.0, which offers lower power consumption, faster, more stable transmission and more reliable connection. With two USB charging ports (5V/3.4A), two devices can be charged at the same time. 2.Unique BASS Button + Three Playing ModesYou can press the B button during music playing to get more bass and to listen to stereo music. Have a party in the car 3.Hands-Free CallsWith the more stable FM signal, superior HI-FI stereo sound and CVC technology, the FM transmitter brings you clearer hands-free calls and lossless music. Better anti-interference performance provides driving safety. 4.Three Play Modes1.Please pair your mobile phone with FM Transmitter via Bluetooth. 2. With SD/TF card (up to 32GB). Support music format of MP3/WMA/WAV/APE/FLAC. 3. With 3.5mm AUX cable. You can switch game mode according to your need. Enjoy wonderful music in the car 5.Small but UsefulThis FM transmitter is very small but helps the user to answer, accept or reject calls, etc. while driving. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin