The streamlined user interface features an easy to read digital screen, and a variety of controls, including Compression, Overdrive, Distortion, Preamp, Modulation, Delay, and Reverb, that are all specifically voiced for bass, as well as Memory Edit and Write controls. The included on-board expression pedal furthers your tonal control, along with a built-in tuner and the ability to download patches for free at BOSS Tone Central.With its small size and huge tonal variety, the Boss GT-1B is an excellent bass multi-effects unit. Features: -Flagship-class BOSS sound engine specially tuned for bass -Pro-level amps and effects in a light, compact floor unit -Essential tools on board for optimizing your core bass tone -Includes advanced MDP effects for maximum musical expression -Modern design with no hard edges enables safe transport in an instrument bag -Easy Select and Easy Edit functions for quickly choosing and tweaking patches -Four AA batteries provide approximately seven hours of mobile playing time -Onboard control switch and expression pedal; footswitch/expression pedal jack and USB -Download pro patches and editor software for free at BOSS Tone Central. The item "Boss GT-1B Bass Guitar Effects Processor Multi-Effects Pedal" is in sale since Saturday, December 2, 2017. This item is in the category "Musical Instruments & Gear\Guitars & Basses\Parts & Accessories\Effects Pedals\Multi-Effects". The seller is "warpdrivemusic" and is located in Brookfield, Wisconsin. This item can be shipped to United States.