۱٫ On-board TDA2030A audio power amplifier chip.
۲٫ Mono 18 w power amplifier circuit design.
۳٫ On-board speaker terminal block
۴ On-board 10k adjustable resistance, can adjust the volume of the amplification.
۵٫ On-board power light.
۶٫ Chip has lead to the main pin, can directly input audio signal.
۷٫ Working voltage: 6 -12 v.
۸٫ Board size: 31.6 (mm) x23.2 (mm).