Balanced/unbalanced Smart direct input box with ultra low distortion,it quietly transfers the sound of guitar or bass directly to the audio system Balanced/unbalanced output,gain switch,cabinet simulator and ground lift function included Full metal shell. True bypass. Features and Specifications Mini effect pedals pack an incredibly BIG sound into a very small package.Very small and exquisiteFull Metal ShellTrue bypassInput: 1/4 inch monaural jack (impedance: 1M Ohms)Output: 1/4 inch monaural jack (impedance: 470 Ohms)Power Requirements: AC adapter 9V DC (center minus plug) (Not Supplied)Current Draw: 40 mAColour:blackMaterial:Aluminum alloySize:93 x 42 x 52mmWeight:160gPackage Contents:1 x Guitar Effect Pedal1 x English manualOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.