Features: Bluetooth-compatible Lossless Sound Quality: Dual decoding support MP3 / WMA / WAV / FLAC / APE lossless format music; support Bluetooth-compatible function and recording call function, Bluetooth-compatible version 5.0. Strong Power Supply And Color Screen Display: Amplifier 2 * 3W, while you can connect two 3W speakers; 5V power supply; color digital screen display; support USB interface (U disk). Multi-functional Design: Power-off memory function; support for 10-meter distance infrared remote control operation. Remote Control: You can choose ouraudio decoder board with remote control or without remote control. Customer Service: If you confront any problems about our products, please feel free to contact us, we are ready to help. We will solve your problems as soon as possible. Specification: Power: With Bluetooth-compatible, power 2*3W Shell size: length 84 * width 25 * depth 22MM Function introduction: Power 2*3W / Support Bluetooth-compatible function (Bluetooth-version 5.0) / Dual decoding MP3, WMA, WAV, FLAC, APE lossless format music / Read USB disk / Infrared remote control / Power off memory / Power supply 5V (Not available on car) Audio card reading board selling point: With bluetooth-compatible, remote control optional. Notes: Due to manual measurement, please allow 1-3cm deviation. Delivery with no battery.