Chromatic Tuner | AROMA Clip On Guitar Tuner Electric Acoustic Battery Powered Ukulele Tuner for Cello Banjo Violin Mini lightweight design, convenient for daily carrying. Powerful functions, suitable for Guitar, Violin, Ukulele, Bass musical instruments. LCD backlight screen will indicate 3 tuning status  flat note, note in tune, sharp note with red screen, green screen and orange screen, easy operation. Clip on design, multi-angle adjustable, you can adjust the best suitable viewing angle freely, fastly and clearly learn tuning results. Built in anti-skidding pad, stable clamp, anti-scratches, careful protection, will not to hurt your instrument. Auto power off function, the device will turn off automatically if there is no signal present or operation in 3mins, saving power.