1、Precise cut and interface ensure perfect applicability, suitable for installation location and easy to install. 2、The product adopts high-quality materials, effectively avoiding corrosion and wear, durable to use. 3、Professional chip set provides excellent performance in the system. 4、Easy to operate, anti-aging and long service life, you can use with confidence. 5、The power amplifier board is of small size, high efficiency, high power, and low heat. Features: 1. Precise cut and interface ensure perfect applicability, suitable for installation location and easy to install. 2. The product adopts high-quality materials, effectively avoiding corrosion and wear, durable to use. 3. Professional chip set provides excellent performance in the system. 4. Easy to operate, anti-aging and long service life, you can use with confidence. 5. The power amplifier board is of small size, high efficiency, high power, and low heat. Specification: Item Type: Power Amplifier Board Product Model: HW-302B Chip: NE5532x3+TPA3116D2x2 Output Power: 80Wx2+100Wx1(heavy bass) Sound Channel: 2.1 sound channel (left channel + right channel + heavy bass) Product Size: Approx. 10x8.5x3cm/3.9x3.3x1.2in Package List: 1 x Power Amplifier Board 1 x Other Accessories Kit