Features: brand new and high quality 7 Colors Music Night Vision: Colorful dazzling atmosphere lights,free to turn on, driving more emotional, 7 colors or turn on/off the light. Clear Hands-free Calling: Built in microphone makes hands free phone call CVC, noise caellation provide high clear quality. File support type: MP3/WMA/APE/FLAC/WAV. Super fast charge: USB-C: support 5V 3.1A PD fast charge. Power-off memory playback function: Automatically reconnect and memorize the frequency after power-on. After the track is powered off and restarted, it will start to for play from the first sentence of the song that was disconnected. Stereo wireless and FM transmission technology, for echo cancellation and noise processing during a call. Specifications: Storage Capacity: No Memory Fm Frequency Modulation Function: Yes for Play Time: Unlimited Pc Interface Type: Usb Size: 1.2 Inches Power Supply Voltage: 12-24 (v) Screen Color: Monochrome Screen Power Supply Mode: Cigarette Lighter Type Car Mp3 Audio Source: U-disk Car Mp3 Material: ABS Color: Black Product Dimension: approx. 50x45x83mm/1.97x1.77x3.27inches Net Weight: 55g/0.12lbs Note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1PC Car Wireless MP3 Player FM Transmitter