N-Tune Onboard Guitar Tuner Onboard True Bypass Chromatic Tuning N-Tune kit has a 250k potentiometer and white, black, parchment and cream discs to match the plastic on many Fender style guitars. Installs easily into almost any electric guitar. N-Tune is the world's most convenient solution for fast, accurate guitar tuning. Whether you're in the studio, on stage, or just practicing, simply pull your guitar's volume knob and use N-Tune's super-bright display to silently tune up in seconds. Then push it back down to play -- with perfect tone, thanks to N-Tune's true bypass design which removes all tuning circuitry from your guitar's signal path. N-Tune is available as an aftermarket kit that can be easily installed into almost any electric guitar. All you need is your existing volume knob and some standard soldering tools. Best of all, no permanent modification of your guitar is required! N-Tune: It's professional tuning at your fingertips Installation of N-Tune Available at VST Authorized N-Tune Dealer