Features Rated input : 15W Input voltage : 100V Output voltage: 100V Volume Switch : 6 Steps (off, 24dB, -18 dB, -12 dB, -6 dB, 0dB) Panel : Aluminium alloy galvanization Color : Silver Dimension : 70mm(W) x 120mm(H) x 22mm(D) Weight : 0.068Kg Click here to download TACH TC 77 PDF