Our discreet GTP7000 Mini Pedal Tuner makes it easy to integrate a tuner into your pedalboard. Compact, and compatible with standard 9-volt power supplies, this pedal takes up little space yet provides all the features needed to tune an electric guitar or bass. The large-print high-contrast backlit screen provides excellent visibility from several feet away in any type of lighting. To preserve the purity of your guitar tone, it also features true-bypass circuitry which completely removes the pedal from the signal path when it's not in use.