1、Precise cuts and interfaces ensure perfect fit, fit for mounting position and easy to install. 2、The product uses high quality materials, effectively avoid corrosion and wear out, and durable. 3、Professional chip set provides superior performance in the system. 4、Easy to operate, anti-aging, and extended service life. 5、On-board dial potentiometer to adjust the volume output. Features: 1.Precise cuts and interfaces ensure perfect fit, fit for mounting position and easy to install. 2.The product uses high quality materials, effectively avoid corrosion and wear out, and durable. 3.Professional chip set provides superior performance in the system. 4.Easy to operate, anti-aging, and extended service life. 5.On-board dial potentiometer to adjust the volume output. Specifications: Material: ABS Color: As picture shown Size: Approx. 5*4* 2.5cm/2* 1.6* 0.98in 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, 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; The Power input mode is DC 5.5* 2.5 seat, working voltage is 6-18V. Package list: 1 x  Module