Guitar effect. The Ibanez NU TUBESCREAMER is the very first compact guitar effects pedals to incorporate a Nutube directly into its circuitry. This pairing of Ibanez's Tube Screamer with KORG's Nutube technology, has produced an overdrive with exceptional dynamics, improved sensitivity, and natural tube compression. Controls: Drive, Tone, Level, Mix. Size: 71(W) x 124(D) x 53(H)(mm). Power Supply: DC9-18V (Negative Center) or one 006P 9V battery. Current Draw: 50mA@9V, 60mA@18V. Development collaboration with KORG Nutube. 100% Analog circuitry. Relay True Bypass Switch. Made in Japan