1、Onboard TDA7297 audio power amplifier chip, dual channel 15W+15W, suitable for 4-8 ohms 10-50W speakers. 2、The main pin of the chip has been led out to facilitate the control of the external device. Onboard 2 channel 5.08 (mm) pitch 2P binding posts are respectively for the left and right channel wiring output. 3、The onboard dial potentiometer can adjust the volume output size. 4、Support DC power supply, terminal block, and pin 3 power input mode. The default is DC, and the working voltage is 6-18V. 5、All the parts used are all high quality, low noise, can be suitable for stable jobs. Features: Onboard TDA7297 audio power amplifier chip, dual channel 15W+15W, suitable for 4-8 ohms 10-50W speakers. The main pin of the chip has been led out to facilitate the control of the external device. Onboard 2 channel 5.08 (mm) pitch 2P binding posts are respectively for the left and right channel wiring output. The onboard dial potentiometer can adjust the volume output size. Support DC power supply, terminal block, and pin 3 power input mode. The default is DC, and the working voltage is 6-18V. All the parts used are all high quality, low noise, can be suitable for stable jobs. Specification: Material: ABS Size: Approx. 4.8 * 3.5 * 3 cm/ 1. 9 * 1.4 * 1.2 in Package Weight: 25 g Package list: 1 * Amplifier Module