Brand Jtron Model 03100404 Quantity 1 Color Green Material PCB Specification The single chip has 3D surround sound and the integration of bandpass filter 2.1 channel function; The output power (5V power supply): 5W (2 load) + 3W x 2 (4 load); Working voltage: DC 2.5~5.5V; Excellent all bandwidth EMI suppression ability; Excellent "power on power off" noise suppression; Up to 90% of efficiency; High PSRR: -80dB (217Hz); Over current protection overheating protection undervoltage protection; PCB size 30 x 25mm Features Amplifier Board Application Amplifier Board English Manual/Spec Yes Packing List 1 x Amplifier Board