Denew Guitar tuner clip-on, digital tuner guitar accessories with plectrum for acoustic guitar, electric guitar, bass, violin, ukulele and other stringed instruments [Easy Tuning] Clip the tuner onto the headstock of your guitar and follow the on-screen prompts to loosen or tighten the strings. To tune other instruments such as ukulele, violin and bass, simply change the mode accordingly. [Locking Design] The 360 degree rotatable LCD screen and adjustable padded clips provide the best viewing angle and maximum positioning flexibility. [High Accuracy] The highly sensitive tuning ensures that your instrument is tuned accurately. Vibration-sensitive design ensures reliability even with background noise. [Small size] Lightweight (only 23g) and small size for easy storage. Large screen with backlight makes it easy to read even in dark environments. Requires one button battery (not included) (CR2032). [Essential Accessory] The tuner is a must-have accessory for guitarists and players of other stringed instruments. It makes a thoughtful little gift for guitar lovers.