PA3116D2 Digital Amplifier Board DC 12-24V 2x50W Dual Channel Class D Audio Speaker HIFI Stereo Sound Board 100% Brand New and High Quality Mini thin volume; High power class D digital amplifier board; Using TPA3116D2 chip; Working voltage 12V-24V DC; Output power 50w + 50w; Size length 37 * 25mm width; Package Included: 1 x TPA3116D2 Amplifier Board