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Look up onSpecifications:Input 1/4" TRS / Mono = Tip, Stereo = Tip & RingOut 1 1/4" TS Mono / Mono OutputOut 2 1/4" TS Mono / Stereo OutputEXP 1/4" TRS / Expression pedal, Aux Switch or MIDI I/OMono/Stereo Switch Sets Input to Mono (Tip) or Stereo (Tip + Ring)Guitar/Line Level Switch Optimizes internal gain structureMini USB Software updates, MIDI I/ODC Input Jack 5.5mm / 2.1mm plug / Center Negative (-)Input Impedance 700k ohms Mono, 990k ohms StereoMax Input, Guitar +8dBuMax Input, Line +14dBuOutput Impedance 220 ohmsRecommended Load Impedance 10k ohmsPower 9V DC @ 200mA / Center Negative (-)Dimensions (product) 4" W x 4.25" D x 1.68" H / 102 mm x 108 mm x 43 mmWeight (product) 1.06 lb / 0.48 kgDimensions (package) 7.7" W x 4.75" D x 2.8" H / 178 mm x 121 mm x 71 mmWeight (package) 1.68 lb / .77 kg

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