1、Precise cuts and interfaces ensure perfect fit, suitable for mounting position and easy to install. 2、The product uses high quality materials to effectively avoid corrosion and wear, and is durable. 3、Professional chipset provides superior performance in the system. 4、Easy to operate, anti-aging, and prolonged service life. 5、On-board dial potentiometer to adjust the volume output size. Features: Precise cuts and interfaces ensure perfect fit, suitable for mounting position and easy to install. The product uses high quality materials to effectively avoid corrosion and wear, and is durable. Professional chipset provides superior performance in the system. Easy to operate, anti-aging, and prolonged service life. On-board dial potentiometer to adjust the volume output size. Specifications: Material: ABS Onboard TDA7297 audio power amplifier chip, dual channel 15W+15W, suitable for 4-8 ohm 10-50W speakers The main pin of the chip has been taken out, which is convenient for external device control. The onboard 2 channel 5.08 (mm) pitch 2P binding posts are respectively connected to the left and right channel wiring On-board dial potentiometer to adjust the volume output size Support DC base, terminal block, pin 3 power input mode, the default is DC seat, working voltage is 6-18V Package list: 1 x Amplifier Module