Digital Audio Amplifier Module

Features: 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 high electricity level) 2. Available to add an external Shutdown (SD: the chip will be Shutdown at low electricity level, Discounted at only: US$ 9.99