Fangrui Product Details Balanced/unbalanced Smart Direct Input Box With Ultra Low Distortion,it Quietly Fers 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 Rowin Mini Effect Pedals Pack An Incredibly Big Sound Into A Very Small Package. Very Small And Exquisite Full Metal Shell True Bypass Input: 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 Ma Colour:black Material:aluminum Alloy Size:93 X 42 X 52mm Weight:160g Package Contents: 1 X Guitar Effect Pedal 1 X English Manual Only The Above Package Content, Other Products Are Not Included. Note: Light Shooting 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.