Generic TPA3116D2 2*50W Digital Power Amplifier Board Class D DC12V 24V Dual Channel Audio Stereo AMP DIY Supplies: Electrical, Model Number: Power Amplifier Board, Unit Type: piece, Package Weight: 0.122kg (0.27lb.), Package Size: 14cm x 11cm x 5cm (5.51in x 4.33in x 1.97in)