Product description
1, onboard TDA2030A audio power amplifier chip
2, mono 18W (RL = 4 ohm) power amplifier circuit design
3, onboard speaker terminal block
4, onboard 10K adjustable resistance, you can adjust the volume of the amplification
5, onboard power indicator, the chip's main pin has been led out, you can directly input the audio signal
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.