The N-Tune Classic series 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 no affect on your instrument's tone, thanks to N-Tune's true bypass design which removes all tuning circuitry from your signal path.

Features:

Fast, accurate tuning
For use in most electric guitars or basses
Pull your volume knob to tune up silently; push knob back down to play
Includes black, Gibson-Creme, Fender-Cream, parchment and white-colored tuning rings
True bypass design preserves your instrument's original tone
No drilling or permanent modifications required
Installs easily using standard soldering tools
Auto shut off to preserve battery life