Roadie Roadie 3 Tuner, Automatic Tuner / Motorised String Winder, Completely automatic, High-resolution 135 x 240 pixel LED color display, Just put it on the tuning peg, strike the string and watch how it is perfectly tuned in seconds, Works with all guitar-like machine heads, including electric, acoustic, classical and steel guitars, ukuleles, mandolins, banjos, etc., The latest generation of vibration detection gives the Roadie 3 unsurpassed noise immunity and accuracy when tuning, even in noisy environments, Selection from more than 100 preset, alternative and open moods - your own moods can be created with the optional and free app, Quick and easy winding of new strings with the automatic winding function (120 rpm), Power supply with the included rechargeable lithium polymer battery with charge status display, Integrated vibration metronome, Easy synchronisation via bluetooth with free iOS and Android application, Connections: USB-C, Dimensions: (W x D x H): 51 x 25 x 89 mm@+*Note:* Not suitable for basses (alternatively Roadie Bass: Art.#441148#)