Features: 1.This phase shift is a classic analog phase shifter. Compared with ordinary old phase shifters, you can better control the sound of the phase shift 2.In addition to speed, you can also control width and feedback with this effect pedal 3.Whether you want a slight movement in your main sound or deep and watery phase sweeps for wide cleans, this tiny little box can do it all 4.Made of good?quality metal materials, possess high hardness and good metallic luster, very durable 5.Phaser pedal is an important musical instrument accessory, which can be given as a gift to guitarists or music lovers specification:Item Type: Guitar Phaser Pedal Material: Metal Current Consumption: 30mA Power Requirements: 9V DC center negative Product Size: Approx. 11.2 x 6.4 x 3.4cm / 4.4 x 2.5 x 1.3in PackageList: 1 x Guitar Phaser Pedal 1 x Battery Cable 1 x Guitar Phaser Pedal Footpad NoteCustomers need to purchase an external power supply by yourself to be powered on