Digitech is a leading manufacturer of audio equipment, specializing in a line of products that provides enhancement effects to guitars, vocals, and studio recordings. There products have been used by a number of famous musicians, including Korn, Tool, Radiohead, and Rage Against the Machine. Some of the products that Digitech specializes in include artist pedals, distortion pedals, multi-effects processors, bass products, and vocal products.

The Digitech 2112 and the Digitech 2120 are generally thought to be the company's greatest accomplishments. The 2112 and the 2120 are multi-effects rack-mounts. Another famous Digitech product is the Whammy Pedal. Since the Whammy Pedal became available, it has become one of Digitech's most famous products.

The Whammy Pedal works by bending the pitch of a guitar's signal. Although it has been redesigned four different times, the original is still the most popular product. The first redesign was more complex than the original, the second redesign was a Bass Whammy. The current design is very similar to the original, with a few small modifications.

The Whammy is Digitech's most famous effects pedal. These pedals are used to change the sound quality of the incoming pitch by adding special effects such as overdrive, fuzz, distortion, and reverb. These effects pedals sit on the ground, where the players can control the on/off switch with their feet. Digitech also produces distortion pedals. Some of the cleverly-named pedals they produce include Death Metal, Hot Head, Grunge and Screamin' Blues.