ENYA ST1 Auto Tuner/Winder & Metronome with Full-Color LCD Display for Electric and Acoustic Guitars, Ukuleles, and Banjos, Black

Cross-shaped peg connectors (motor-driven) accommodate various tuning peg shapes. Compatible with guitar and ukulele (high-G, low-G). Auto and manual modes provide flexible use. 3100mAh battery, charging takes 3.5 hours. 5-8 hours of use. Color LCD display shows tuning status in real time.