Description: Packing List1x Amplifier Board, 1x cable. Note: Short circuit is strictly prohibited for outputHigh PowerThe output power of Audio Amplifier Board is 300W+300W, high power output.Unique DesignAudio Stereo Amplifier Board has temperature control and speaker protection design to extend the service life of the amplifier boardFeatures300W+300W Amplifier Board supports wide 2AC24~35V, uses high performance 2SA1943/C5200 chip, and large heat sink assists stable operationProduct SizeThe size of Two Channel Amplifier Board is 21cmx12cmx7.5cm/8.27inchx4.72inchx2.95inch. Specification: Material: Metal and PlasticWorking : 2 AC24-35VOutput Power: 300W+300WChannel Type: 2.0Chip Type: 2SA1943/C5200 Input: AC12V Size Chart: 21cmx12cmx7.5cm/8.27inchx4.72inchx2.95inch Package Includes: 1x Amplifier Board1x cable Note: Please allow slightly errors 1-2cm differences due to manual measurement.