12V 5V Bluetooth 5.0 MP3 Board 50W Amplifier DIY Home Dial Audio Module USB TF AUX FM Radio For Speaker Handsfree

1, Product features:5V-12V power supplySupport for folder selection and playbackSupport for calling/ (external ). needs to be operated in TF mode or USB mode.(Long pre and hold the MODE on to start , then pre and hold the MODE on again to cancel and play the file; in mode, a storage device USB drive or TF card needs to be connected;)Support for USB/TF/Bluetooth/Radio/AUX automatic switchingSupport power outage memory function: remember songs and volume before power outageThe product comes with a power amplifier that supports balanced output, with a stereo power of 2 * 25W.Support song de for MP3/WMA/WAV/APE/FLAC versionsSignal to noise ratio ≥ 70dBRadio frequency range: 87.5~108MHzAcceories: Host * 1pcs, 2P power cord * 3pcs, 1P radio * 1pcs2, Key function description:Pre and hold "PREV/VOL -" to decrease the volume; Short pre in USB/TF/Bluetooth/Radio mode to select the previous ck/radio stationShort pre' PLAY/PAU 'in USB/TF/Bluetooth mode to play/pause; Long pre to switch modes,Pre and hold "NEXT/VOL+" to increase the volume; Short pre to select next ck/radio station in USB/TF/Bluetooth/radio mode• "MODE" refers to mode switching, with a total of 5 modes (Bluetooth TF-USB-FM-AUX).