[USB Charging Cable]Ultra-low power consumption and automatic shutdown function save energy and maximize battery life. Quickly charge using the included USB cable on your PC or power bank. The tuner automatically powers off after 3 minutes of no signal to save energy. [LED Color Display and Metronome]Open the color LED display of this guitar tuner clip, you can easily know whether the tone is too low or too high. You can position the screen any way you like. And this tuner can also act as a metronome, and you can easily jump to beat mode to listen to various with just one click. [Precise Tuning]Using standard pitch, you can use this tuner to tune many instruments, such as guitar, bass, violin, banjo, ukulele, etc. You can tune any string, brass, or woodwind instrument. With a 360° swivel mechanism and the largest clamp opening, it fits almost any instrument. Material: plastic colour: black Package Contents: 1 x Tuner 1 x Micro-USB Cable Only 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. [LED Color Display and Metronome]Open the color LED display of this guitar tuner clip, you can easily know whether the tone is too low or too high. You can position the screen any way you like. And this tuner can also act as a metronome, and you can easily jump to beat mode to listen to various with just one click. [USB Charging Cable]Ultra-low power consumption and automatic shutdown function save energy and maximize battery life. Quickly charge using the included USB cable on your PC or power bank. The tuner automatically powers off after 3 minutes of no signal to save energy. [Precise Tuning]Using standard pitch, you can use this tuner to tune many instruments, such as guitar, bass, violin, banjo, ukulele, etc. You can tune any string, brass, or woodwind instrument. With a 360° swivel mechanism and the largest clamp opening, it fits almost any instrument. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.