ITEM NAME:TDA7297 AC/DC12V 15W+15W Dual Channel Digital Audio Amplifier Board Module Ew.1 x TDA7297 Version Amplifier Board. AC / DC, 2.0 / dual channel / stereo,12V/2A when using, the output power of 15W +15 W, peak up 25W +25 W. Power: 15W +15. High signal to noise ratio. Maximum power:3.