SUPERIOR ACCURACY - Ensures precise tuning for cello and double bass, featuring a chromatic tuner with adjustable A4 calibration from 430-450Hz for optimal sound. ENHANCED DURABILITY - Built to last with high-quality materials, the robust clip-on design withstands frequent use, making it a reliable tool for musicians. SIMPLE EASE OF USE - Features an intuitive LCD display and user-friendly interface, allowing for quick and effortless tuning adjustments, even in dimly lit environments. ULTIMATE VERSATILITY - Suitable for both cello and double bass, this clip-on tuner offers chromatic functionality, accommodating various tuning needs with ease and precision.