MOD-XS9871 Super Mini Digital Power Amplifier Board XS9871, 1*5W Class D Digital 2.5V To 5.5V Efficient Class AB/D Optional

XS9871 Super Mini Digital Power Amplifier Board, 1*5W Class D Digital 2.5V To 5.5V Efficient Class AB/D Optional.

Specifications:
Voltage: DC 2.5-5.5V (Recommended 5V maximum operation)
Current: >1A
Output Voltage: 3-5V
Load Range: Impedance 2Ω-8Ω (recommend matching to 3 watt 4 Ω speakers) 

Interface

Power/Audio: GND
In: Audio Input+
OUT+: SPEAK+
OUT-: SPEAK- (4Q-80)
Mute: Mute port active high; high level is silent. Low level not connected.

Please follow the wiring diagram.