Flanger KOKKO KH8 True Bypass High Gain Distortion Guitar Effect Pedal   Description:  Gain: Adjust the degree of distortion   Scoop: Adjust the Presence    Tone: Adjust the low、mid、high frequency   Level: Adjust the volume of the sound    Specifications:      Model: KH8     Color: Red     Material: Metal     Input impedance: 1M Ohms     Output impedance: 10K Ohms     Power: 9V battery or external AC adaptor     Delivering 9V DC regulated minimum 300mA     Size: 121(L)*77(W)*48(D)mm     Weight: 280g      Feature:   True bypass hardware switching.       Fully ANALOG circuit (3 gain stages).       Aggressive high gain distortion sounds possible.       LED indicator shows status of effect and battery condition.       The pedal can be powered by a battery or optional adaptor.        Package Included:  1 x KH8 Guitar Effect Pedal   1 x Manual