ROWIN NANO Series LN-313 PHASER Tiny effect pedal - big sound! A very versatile phaser pedal offering a combination of 2 Phaser settings Modern and Vintage, in a super small package design with a wide range of sounds. The Vintage is reminiscent of the original "big orange pedal" in the 70s, with a tight phase loop. The modern is a longer, high depth phase with almost a rotary speaker feel. Get anything from EVH to Pink Floyd Simple to use, just choose between Vintage or Modern modes using the micro two-way switch. Then use the speed knob to adjust the phaser sound to your desired tone. Compact, Tough Design This nano pedal is very small - less than 3 inches in length! Only 1.5 inches wide! With a small footprint like that, you will not have any problem finding a place on your pedal board for this pedal! Tiny doesn't mean weak - this series of effects are extremely tough! All metal construction, true bypass, and metal micro switches - this pedal is gig worthy. True Bypass Circuitry Hard to believe but these effects are designed with a 3PDT - true bypass, your tone is not altered when the pedal is not engaged. Specifications Full Metal Shell Speed control Two phaser modes - vintage and modern True Bypass 3DPT Switch Power Supply: 9V DC (Negative Center) - (Not Included) (38ma). NOTE that these pedals do not run on batteries, you must use an adapter like a BOSS (or a power supply).