Item Name: AC/DC 9-15V TDA7297 2x15W Digital Audio Amplifier Kit Dual-Channel Module Stereo. Product DescriptionFeatures:100% brand new and high qualityAC / DC, 2.0 / dual channel / stereo,12V/2A when using, the output power of 15W +15 W, peak up 25W +25 WCan be accessed by two 4-8 10-50W speakersA large volume of small sizeHigh signal to noise ratioUpgraded version of the radiator, wider and thicker, better cooling effectFit for Bookshelf speakers, CRT televisions, radios, and other small amplifiersSpecification:Working voltage: DC 9-15VPower: 15W +15 WMaximum power:30W+30WOutput Impedance: 4-8Package Included:1 x TDA7297 Version Amplifier BoardNote:The size is just for reference, there maybe exist a measurement error, please check carefully before you buy it.Color may vary slightly due to different calibration of each monitor.