Mugig Tuner, Guitar Tuner, Multi-Functional Colorful LCD Display Clip on Tuner for Chromatic, Guitar, Bass, Ukulele and Violin, Battery Included, Auto Power-off With Five Tuning Modes: C, G, B, V, U (Chromatic, guitar, bass, violin, ukulele) to cover a wide range of instruments. You can change any mode you need. Highly sensitive vibration tuner responds fast, which ignores the background noise, is ideal for loud in the chaotic environment . Pitch calibration from 430HZ to 450HZ Compact high quality lightweight design with dual 360 degree rotation and super-bright full color display and easy to read from any angle Scientific design with solid construction ensure no break in use. Environment-friendly ABS plastic applied, selection of high quality materialsFCC/CE certified,ROHS compliant Single coin battery operated and convenient to carry, it will help you to save electricity when auto power off for no operation after 5 minutes