The Gate Of Kahn is the brand new noise gate from Joyo. With just one simple 'threshold' control this pedal makes it exquisitely easy to get rid of all that unwanted noise from your signal chain. Adjust it so that when you play a note or chord with it on it is the same volume level as when it is off. In the unlikely event that you're still getting more noise than you want then ever so slightly increase the threshold control but remember a little adjustment goes a long way!!! Input Impedance: 1M ? Output Impedance: 100 ? Running Current: 20mA Power: DC 9V centre negative (not included) Dimesion(mm):73x43x50 Weight: 220g In the Box: 3m Velcro Rubberised backings to fix to your board. Instruction Card Serial for warranty 1 new mini guitar effect pedal from JOYO. Note: Power supply not included. Please use a 9V DC power adapter whose polarity is negative centre otherwise, the product may not work properly. Package List: 1 * Effect Pedal 1 * User Manual(English Chinese) 1 * Year warranty through our store No Duty to Canada and USA FAST 'N FREE USA Shipping Ships from Canada