This product has the function of adjusting the volume of the power amplifier. When using it, you only need to turn the knob switch clockwise. There are 5 gears to adjust the volume. It is widely used in homes, shopping malls and other places where volume needs to be controlled.

Three types of switch: full large panel (D8 / D8B series); Medium-Large Modular with frame (D29 / V8-Z8 series); Small Modular with frame (V8-RP / D5 series).

Parameters:

Output Power：＜5W

Power Frequency: 50 / 60Hz;

Operating Temperature: -20℃～+40℃

Working Humidity: ≤95%