XIANQI Product Description: Quantity: 1pcs Color: black Good performance and High Accurate :This tuner adopts advanced Micro Processor and highly sensitive Piezo Sensor ensuring every pitch you tune can be corrected accurately in a flash. Built-in buzzer pickup for interference-free tuning.Save your time and energy. Rechargeable Guitar Tuner: No need to change battery,just charge this clip on tuner with USB cable when the battery is out of dead.Save your money! Long-time Use:This guitar tuner can be used for about 10 hours at the state of full power. Ultra-low-power and auto power-off function save the product energy.A Clip-On Tuner for Instruments - with Guitar, Violin, Ukulele Chromatic Tuning Modes. 360 Rotation Clip-on Tuner : 360 degree rotation allows this tuner rotate at any angle you want.A tuner with high contrast LCD color display screen offer you an excellent visibility. Sturdy and Durable : With a strong and durable design, this tuner was built to last for long time. And the improved clip design can hold your instrument tightly but still can keep protecting your instrument's finish.