The Shadow Electronics E-Tuner Humbucker Frame transforms your electric guitar equipped with humbuckers into an instrument with onboard tuning. Designed for guitarists seeking fast, precise and discreet tuning, this revolutionary chromatic tuner sits inside your humbucker frame with no modification required. Its multi-colored LEDs are easy to read in any environment and the one-button control and automatic switch-off make this tuner ready whenever inspiration strikes. With the Shadow Electronics E-Tuner Humbucker Frame, you can focus on your playing knowing your guitar will always be in tune.