Features: Support for direct switching of external signals Support fast forward and fast reverse (remote control long press up or down key ) Support USB/TF/FM/LINE automatic switching Support MP3/ lossless WAV music Support USB, TF, MMC card play Support USB/ TF card switch,the last song, the next song, fast forward, rewind, adjust the volume, EQ, play / pause, stop, single repeat, mute, shutdown, direct election song Supporting FAT16 and FAT32 file systems Support songs of MP1 Layer 3, MP2 Layer 3, MP3 Layer 3 version Support 32 - 320kbps MP3 songs Support lossless WAV is below 1411kbps Support power off memory: memory the song and volume before power off Specifications: Voltage: 12V Color: Black Size: 10.7x2.5x3cm Quantity: 1 Set Note: Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Contents: 1 x MP3 Decoder Board 1 x Controller