Digital Audio Amplifier Module 5W + 5W Dual-Channel Stereo Mini Amplify DIY Circuit Board for Bookshelf Floor Speakers

Digital Audio Amplifier Module5W + 5W Dual-channel Stereo Mini Amp Board Amplify DIY Circuit Board for Bookshelf Floor SpeakersFeatures:Dual-channel digital audio amplifier module with DC 5V working voltage & 5W + 5W output power.Equipped with black copper terminal blocks, imported KEMET speaker capacitor, large-capacity filter capacitor for channels and gold-plated audio input terminal blocks.With a input port that is available for 3.5mm audio cable, and a volume control knob(clockwise to turn volume up and counterclockwise to turn volume down).Features over 90% high efficiency, less than 10% general harmonic distortion, low quiescent current and noise suppression.Designed with input reverse connection protection, short circuit protection, over heat protection; what's more, EMI is allowed to pass.Additional function:1. Available to connect amplifier type to choose the different function (MODE: high electricity level is Type D, low electricity level is Type A, B. Factory defaults h