Mini portable Guitar Chromatic Clip-On Digital Tuners for guitar,bass,violin,ukulele,music instruments Guitar Parts Accessories Quick Overview: WST-905 Clip-On Tuner To make a high-quality tuner, we use Murata degree piezo to detect the string vibration. Metal clip and ball joint structure offers maximum durability and flexible angle of view. All of these are also essential for WST-905's very quick response. We chose the colored VA LCD (Vertical Alignment liquid crystal display) screen to offer a darker background, high contrast ratio, wide viewing angle, and better image quality everywhere, and it's way more better than any traditional twisted-nematic displays. As the biggest tuner manufacturer in the world, Cherub Technology's 22 years of experience and the musician-engineer developers are tweaking the tuning algorithms step by step to create the best tuner for the musicians. Including the bass guitar players, because of the low-frequency processing difficulties, tuning a 5 string bass guitar is a big challenge by using a regular clip-on tuner WST-905 's very sensitive tuner and it provides an accurate pitch response quickly for all instruments including the 5 string bass guitar. Specification: Mode: WST-905 Color: as picture show Tuning Precision : 1cent Reference Pitch: A4=430Hz~450Hz (1 Hz Steps) Detection Method : Chromatic, Guitar, Bass, Ukulele (C) Power Supply: CR2032 Lithium Battery x1 ( NOT Include ) Tuning way; Clip(tune by vibration) Tuning Range: A0(27.5Hz)~C8(4186Hz) Net Weight: 32g Dimension: 50mm * 25mm * 48mm (D X W X H, Folded Size) Package Includes: 1 x Tuner