Roadie Smart Guitar Tuner

automatic electronic tuner that quickly and accurately tunes guitars and many other stringed instruments with geared tuning pegs. Simply place it on the tuning peg, pluck the string, and it automatically adjusts the tuning for you. Features include: * Automatic tuning with fast, precise motor * Works with electric, acoustic, and classical guitars, as well as ukuleles, banjos, mandolins, and more * Over 150 built-in alternate tunings * Create and save custom tunings using the Roadie app * Built-in metronome and string winder function * Rechargeable battery via USB * Bluetooth connectivity for firmware updates and customization