By Andrew Liszewski

Instead of relying on soundwaves, which can be problematic if you’re trying to tune a guitar backstage at a noisy venue, the Headstock Tuner from D’addario detects vibrations to determine if a particular string is in tune or not. You simply attach it to any part of the instrument that vibrates when a string is plucked, and the device’s “optimally positioned, highly sensitive piezo transducer” will let you know if you’re ready toSource: OhGizmo! RSS Feed