Package:YesModel Number:HIFI Bass Power Amplifier Board Maximum Power Per Channel:10W Origin:Mainland China Features 1:20W Power Amplifier Board Features 2:Power 20W ( 2*10W ) Features 3:Use with 7.4V Lithium Battery Features 4:For Speaker Home Theater DIY Features 5:Car Amplifier Board Features 6:Digital Bluetooth 5.0 Amplifier Features 7:7.4V Amplifier Board Square Dance 20W MP3 Amp Features 8:Support reading MP3 music in U disk and TF card Features 9:7.4V Bluetooth Amplifier board Features 10:20W Audio Amplifier Board Features 11:Microphone Bluetooth Amplificatore 7.4V Bluetooth 5.0 Digital Amplifier Board Subwoofer FM Radio AUX U-Disk Microphone Amplifiers Car Home Theatre Amplificador AMP DIY Description Bluetooth version 5.0 Power amplifier LTK5112 (using 2), power: 2*10W. Bluetooth function Microphone function Music format: MP3/WMA/WAV/FLAC/APE lossless music. Radio FM frequency: 87.5107.5mhz. Introduction of support function: Support MP3/USB/TF/LINE IN/FM/Bluetooth/remote control/DC 7.4V. About structure: panel size: length 205 * width 80 MM, screw holes around the panel, and the depth of the panel is 30 mm. Features: 1.For 7.4V lithium battery, 2.Support reading MP3 music in U disk and TF small memory card; 3.Built-in Bluetooth receiving function, can receive Bluetooth music from mobile phones; 4.With AUX IN external audio input function, can be connected to the computer to play; 5.The panel has a microphone, which can be used to sing. 6.Using word power amplifier, rated power 20W 7.Size: 205*80mm