EASY TUNING: Clamp the tuner on the guitar headstock and follow screen tips to loosen or tighten the strings. To tune other instruments like ukulele, violin, and bass, simply switch to the corresponding mode. CLIP DESIGN: A 360-degree rotatable LCD screen and adjustable padded clamp provide optimal viewing angles and maximum positioning flexibility. HIGH ACCURACY: Highly sensitive tuning ensures precise calibration. The vibration sensing design maintains reliability even in noisy environments. COMPACT SIZE: Lightweight (only 23g) and compact for easy storage. Large backlit screen allows for clear reading in low-light conditions. Requires one CR2032 battery. ESSENTIAL ACCESSORY: This tuner is a must-have for guitar and other stringed instrument players. A thoughtful gift for music enthusiasts.