uxcell DC 12V-18V Power Amplifier Speaker Protection Module Board Blue Product Name : Amplifier Protection Module Board;Main Color : Black,Blue Application : Stereo/Dual Channel Power Amplifier Board,Power Amplifier;Size : 65 x 40 x 25mm/2.6" x 1.6" x 1"(L*W*H) Working Voltage : AC 9-15V DC 12V-18V;Material : Electric Part Net Weight : 43g Package Content : 1 x Amplifier Protection Module Board1 x Specification