Compact clip-on tuner for your tuning needs! Feature: - Sleek and minimalist profile, sturdy clip that's built to last. - Perfect for the guitar, bass, violin, ukulele and chromatic. - Super bright full color display let's you easily see whether you're in tune or not. - Power save feature for extended battery life. Specifications: Material: ABS plastic Color: Black Weight: 19g Dimensions: 5x2.6x7.6cm Tuning scale: Chromatic, Guitar, Bass, Violin, Ukulele(C,D) Tuning range: A0(27.5Hz)~C8(4186.01Hz) Power Supply: 3V(CR2032 lithium battery included) Precision: 1cent A4 Frequency: 440Hz Package included: 1 x Tuner 1 x CR2032 Battery 3 x PCS Guitar Picks 100% Satisfaction Guarantee If for whatever reason you don't satisfied to your TUNER, just return it and we will refund every penny or replace it FREE OF CHARGE.