Features: 1. Compact clip tuner, suitable for color/guitar/bass/Ukulele/violin. 2. A button, easy to use. 3. LCD display screen, 2-color backlight: green tone, white tone. 4. Rotary design can get the best perspective, help you adjust the instrument accurately. Specification: Material: Plastic Color: Black Product size: 22x17x14mm/0.9*0.7*0.6in Net weight: 18.5g Tuning items: color (C) / guitar (G) / bass (B) / ukulele (U) / violin (V) Pitch range: 440Hz Tuning accuracy: ±5 cents Note: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-3cm measuring deviation due to manual measurement. Included: 1 x Tuner 1 x User Manual