ITEM NAME:Hot DC 12V TDA7297 Amplifier Board 15W+15W Dual channel Track Stereo Modu-A E6U5 HOT SALE body .shopclass { float: left; width: 100%;.Contains the components such as finished product map, you need to weld yourself Oh. Power: 15W + 15W. â—† The amplifier board work efficiency up to 90%, very power-saving, with 12V motorcycle battery-powered continuous playback for more than 5 hours.