DescriptionAre you looking for a professional, yet reasonable amplifier board? Are you in search of a sturdy, trustworthy accessory that can do multiple jobs at once? If yes, look no further! Our power amplifier board must meet your needs, this amplifier board is one of the great choices for you.Features-Color:Blue -Material:Metal, electronic component -Size:8.00X5.00X2.50cm/3.14X1.97X0.98in Voltage: AC 12-18V- This amplifier board with a thickness of 1.6mm and spray manufacturing for durability. - Equipped with a relay and five-ring gold film copper foot resistor for reliable performance. - Features a power indicator light and working indicator function for easy operation. - The amplifier module uses a voltage of single power AC 12-18V, which can be taken from the power supply of the amplifier board. - The stereo module board is pre-assembled and tested for easy installation and use.