Compact and Portable: This tuner is small enough to fit in your pocket or gig bag, making it perfect for musicians . Its user-friendly design ensures that you can tune your instrument quickly and easily, whether you're backstage or at a rehearsal.Versatile Tuning Modes: Equipped with guitar, bass, and chromatic tuning settings, this device can accurately tune a wide range of string instruments including electric guitars, acoustic basses, mandolins, ukuleles, violins, banjos, and cellos.Enhanced Visibility with Colorful LED Display: The bright, colorful LED indicator on this tuner provides clear visibility in all lighting conditions, from dimly lit to bright outdoor environments, ensuring you can always see your tuning status.Energy-Efficient Operation: To conserve battery life and maximum efficiency, the tuner features an automatic power-off function that activates after three minutes of inactivity. This feature helps prolong the life of your batteries and saves energy.Pick up: Microphone or ClipTuning mode: AutomaticTuning range: A0(27.5Hz)-A6(1760Hz)A4 frequency: 435-445HzTuning error: ±1 centPower supply: 2 x AAA batteries (not include)Colour:blackMaterial:plasticThe actual product may have slight color difference or difference, which not affect the usePackage Contents:1 * Chromatic TunerOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.