Tuner - Chromatic Headstock by Planet Waives

The Planet Waives Headstock Tuner precisely tunes guitars, basses and other stringed instruments, utilizing the instruments vibration rather than sound. Using a highly sensitive piezo transducer and backlit LCD, this tuner allows you to tune easily and accurately in noisy and dimly-lit environments where many other tuners fail.
Simply clip the tuner to vibrating surface of the instrument and tune as usual. 

*Requires one CR2032 battery (included)