Product parameters: Output power: double channel 3W+3W; Load: 4~8ohm; Voltage: 5V DC; Bandwidth: 20Hz-20KHz; Signal to noise ratio: 98~110dB; Distortion: 1KHz 0.1%; The scope of application: Small speaker products digital products computer products audio output of product of box. Product features: JF-980A power amplifier board is playing board a smaller ultra thin very convenient small gaps in the smaller box or other equipment mainly of small size high power good sound quality.