Mosky Obsessive Drive Forced OCD Distortion for Guitar and True BypassDistortion for Guitar with True Bypass Switch. Small size, durable zinc and aluminum alloy body. With drive, volume and sound control knobs. Supports High-Peak(HP) and Low-Peak(LP) functions. Color: Silver Material: Zinc-Aluminum Alloy Signal Input: 1/4 inch Mono Jack Signal Output: 1/4 inch Mono Jack Power Supply: DC 9V Product Size: 3.5*9*3cm / 1.4*3.5*1.2 inch Item Weight: 145g / 5.1oz Package Content: 1 * Guitar Effects PedalNote: Power adapter is not included. 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 error is +/- 1-3cm.