Package includes:1pc Digital Amplifier
Amplifier chip: TDA7377
Operating voltage: AC-DC 9-15V/20-40W
Output power: 40W+40W
Channel Type: 2.0 Channel
Suitable for 3-6 inch bookshelf speaker, floor speaker
Size: 100*110*35mm
weight:100g
Frequency response: 20Hz-20KHz