Description: 12V TDA7377 Audio Amplifier Board, 40W+40W 2.0 Channel Stereo Amplificador For 3-6 Inch Bookshelf Speaker DIY Amplifier chip: TDA7377 Output power: 40W+40W Channel Type: 2.0 Channel Operating voltage: DC12V-15V Current: ?2A Frequency response: 20Hz-20KHz Size: 108*90*30mm Suitable for 3-6 inch bookshelf speaker, floor speaker Package Includes: 1x 12V TDA7377 Audio Amplifier Board