Features: Bluetooth-compatible Connectivity: Connect your phone or other Bluetooth-compatible device to the MP3 player and enjoy your favorite tunes while on the road. Atmosphere Light: The built-in atmosphere light creates a calming ambiance in your car making your driving experience more enjoyable. Dual USB Ports: Charge two devices simultaneously with the dual usb ports including your phone tablet or other electronic devices. Power-Off Memory: This smart phone charger has a power-off memory function which means that it will remember the last charging state and automatically resume charging when you start your car. After-sales Service: If you have any problem please contact us immediately we will help you solve it as soon as possible. Specifications: Material: ABS Rated Voltage: 12V-24V USB 1 Output: 5V/1A USB 2 Output: 5V/3.1A Support Music Format: MP3/WMA/WAV/FLAC/APE Support U Flash Drive Storage Capacity: Max 64G Support TF CardStorage Capacity:Max 64G Bluetooth-compatible Version: 5.0 Notes: Please note that due to the influence of light and screen slight chromatic aberration is acceptable. Please allow slight measurement error due to manual measurement. includes: 1 *Car MP3 Player