1. The product can work on DC power between 7V-12V, with good sound quality and no interference, the effective distance of Bluetooth is 20M in open space, if there are walls or other obstacles blocking the transmission distance will be discounted
2. The decoder board supports U disk TF card direct playback, FM radio, lossless WAV format, MP3 format and WMA format
3. It comes with Bluetooth audio receiver module, after the cell phone and Bluetooth module are paired and connected, the audio played by the cell phone will be transmitted to the decoder board via Bluetooth, and the cell phone playback/previous/next song operation can be controlled by the Bluetooth function of the decoder board
4. The product does not come with amplifier output, can not be directly connected to the speaker, can be connected to other high-power amplifier output
5. Weight: about 31.8g

Features:
-Support direct switching of external signals
-Support Bluetooth3.0EDR
-Support USB/SD/Bluetooth/FM/LINE automatic switching
-Module contains MP3/WMA/WAV song decoding chip
-Support USB, TF card for playback
-Support USB/TF card switching, previous song, next song, fast forward, fast backward, volume adjustment, EQ, play/pause, stop, single repeat, mute, shutdown, direct song selection
-Support Bluetoot previous song, next song, volume, EQ, play/pause, mute, shutdown
-Support FAT16 and FAT32 file system
-Support MP1 Layer3, MP2Layer3, MP3 Layer3 version of the song
-Support 32-320kbps MP3 songs
-Support power failure memory function: memorize the songs and volume played before power failure