The Bluetooth Car Charger with MP3 player is the perfect travelling companion for the car. With LED digital display and supporting various options from USB to TF card, listening to music or audio books made easy. Features: - Bluetooth car FM transmitter - MP3 player - Car charger and TF slot. - Echo cancellation and noise suppression (CVC) technology. - Can transmit the audio files in USB flash drive or TF card to car audio system. - Also can send the music in your phone to car audio system through Bluetooth. - Support answer / hang up / reject / redial your calls (Will switch to hands- free state and will switch back to playing state after calls end.) Specifications: - Supports line audio input. - USB output: 5V / 2.5A - Play format: MP3/ WMA/ WAV/ FLV - Supports U Disk TF Card