Features: Support Bluetooth-compatible hands-free calls and external for touch button.(Optional need to increase costs) Support folder selection for play (remote control operation). Different music category for play selectly. Support USB/ card /Bluetooth/FM/AUX automatic switching. Conversion prompt and call number remind. Support MP3/WMA/WAV format music. MP3 Songs: 2-320kbps, WAV/WMA: 1411kbps and below Support USB/ card switching, the songs selection, volume control, EQ, for play / pause, stop, mute, shutdown, direct election song. Support Bluetooth-compatible Bluetoot the songs selection, volume control, for play / pause, mute. Support power off memory function: Can memory songs and volume before Memory blackout, Breakpoint memory(it will off after taking out of U disk or SD card after 3 seconds under the state of playing, it can for play memory breakpoint when power on) Power cut memory function ( remember the last playing song ) FM transmitter ( manually set up the frequency ) With a remote controller, powered by one 3V CR2025 button battery ( included ) Cable length: 19.5cm ( black and red cables ) and 25cm ( white cables ) All-round remote control and the longest effective range is 8m Support clock display function Support 6 kinds of EQ sounds: normal, classic, jazz, rock, for pop and Specifications: Color: Silver/Black Working voltage: 5 - 12V Working current: 200 - 900mA Support format: MP3 ( 32 - 320Kbps ) / WAV and APE ( 1411Kbps and less ) Bluetooth-compatible version: 2.0 Quantity: 1 Set Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Compare the detail sizes with yours, please allow 1-4CM differs due to manual measurement, thanks! Package includes: 1 x M01BT MP3 Decoder Board 1 x Controller 2 x Cables