Dc 3V 3.7V 5V Class Ab Mono 3W Mini Amplifier Board Audio Amp Module One Channel

Power amplifier board with NS8002 (beyond the domestic 8002A, B, C, D) AB class efficient power amplifier chip carefully debug sound quality perfect, strong power, without any interference, it is fine! Parameter description: PCB size: length 16 x width 10.5 x thickness 2.6mm (with protruding part) Installation: SMT patch Output power: mono 3W Supply voltage: 2V-5V (3.7V lithium battery can be used) Output impedance: 4omega-8omega Frequency response: 150HZ-20KHZ Efficiency: 90 Mute control: Yes Volume adjustment: none Wiring instructions:This board should be grounded, 3 feet for the power supply negative and ground sharing. 1 foot for the quiet output, and 3 feet to be connected together, when the voltage is 0 when the sound, the voltage is 0.5-5V when the silent, no sound output. Package Included:1 x Mini Amplifier Board The merchant warrants that their products comply with all applicable laws, and are offered only if they comply with Joom's policies and EU Product Safety and Compliance laws.