Mini 20W+20W BT 5.0 Wireless Audio Digital Power Amplifier Mobilephone Control Stereo Board Amp Dual Channel Amplificador

Features:Compatible with USB disk, playing mp3/wav music.High power rejection ratio, high AM rejection, high power conversion efficiency.Knob tuning, smooth feel, one button start/stop.App control , it can be used to switch audio input mode/play mode/sound effect.Fine sound quality.Mini size for easy carrying.Power reverse connection protections, short circuit protections, self recovery overheat protections.Support active and passive speakers.