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: Amplifier 2 * 40W, while you can connect two 40W speakers; The voltage range is 7V-25V, and the current cannot be lower than 2A; Support USB interface (U disk). Multi-functional Design: Power-off memory function. Support for 10-meter distance infrared remote control operation.Support radio FM, search frequency band (87.5MHZ-108.0MHZ). Remote Control: You can choose ouraudio decoder board with small remote control or with big remote control.Six-button multi-directional control, REC / REPEAT / FD- / FD+ / AUTO / MODE. 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: 2*40W Shell Size: length 112 * width 62MM, depth is 22MM Function Introduction: Power 2*40W / support Bluetooth-compatible call function (Bluetooth-version 5.0) / dual decoding MP3, WMA, WAV, FLAC, APE lossless format music / read USB disk / read SD card / radio FM / External audio input LINE IN / infrared remote control / power off memory / power supply 12V (voltage range 7V-25V) Audio Card Reader Selling Point: 12V, with bluetooth-compatible, remote control optional.