ITEM NAME:Tpa3116D2 Dual-Channel Stereo High Power Digital Audio Power Amplifier Boar D9I3 Tpa3116D2 Dual-Channel Stereo High Power Digital Audio Power Amplifier Boar D9I3 Onboard front-facing IC to improve the input sensitivity, high-definition sound quality. Working voltage: DC12-26V Output power: 120*2W MAX, DC12V, 2*50W,DC24V, 2*120W Signal to noise ratio: 100db Channel: Dual channel stereo color:blue Material:metal Size: 92 x 68 x 16mm Package Contents: 1 * Audio Amplifier Board