Bluetooth hands-free call function • Call line identity • Echo cancellation and noise removal • Bluetooth and FM emission technique • Able to display file title， folder， number of files in the folder • Able to select different files from different folders on the device • Able to charge mobile phone /MP3 player trough USB port (cable not included) • Car MP3 FM Transmitter with USB/SD/MMC Slot • 3.5mm jacket audio input， support line-out • Files supported: MP3 / WMA • FM frequency range: 87.5-108.0MHz • Support reading audio files from USB flash drives， SD/MMC memory card， and TF/mini SD card (via adaptor) • OLED screen (128*33)， can display radio frequency， audio file title， working status • ON/OFF function • Resume the last frequency， track number， and volume when restarting • Full function super slim remote controller enclosed • Support USB/SD MMC /TF Card (SD Card are not included ) • Support MP3 and WMA format .Save MP3 file to U port. Plug in U port • Auto power-off memory， memory functions of song， volume and frequency • LCD display of frequency/track no. and name of songs • None of the coming calls could be missed during enjoying the MP3 player. • Auto-play music after call ends. • Power supply from 12V car cigar lighter Specifications: Bluetooth version: 2.0 • Rated voltage: 12V • Limit voltage: 9-12V • Power consumption: 1W • Work temperature: -20~50°C • Play format: MP3 WMA (optional) • SNR >60dB • Distortion factor<0.1% • Frequency response: 20Hz~15Khz • Separating size of right and left • Channels:60dB How to Use: • Turn on your car stereo and tune to the same frequency as your car MP3 player. Press the play button of the car MP3; • Apply to USB device and MP3 player; • Plug USB device into car MP3 player. Plug car MP3 player into cigarette lighter of your car directly; • Plug in SD card. Enjoy your favourite music. Note: Due to the difference between different monitors， the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. Thank you!Package Content: 1 x MP3 Player 1 x Remote Controller