Donner Rechargeable Clip on Tuner for All Instrument, Guitar Ukulele Bass Banjo Vionlin Mandolin Digital Metronome TunerCategory: Banjo TunersDonner Rechargeable Clip on Tuner for All Instrument, Guitar Ukulele Bass Banjo Vionlin Mandolin Digital Metronome Tuner Tone Generator 3 in 1 Features: 1. Metronome, Digital Tuner and Tone Generator, 3 function in 1 device for acoustic and electric guitars, bass, ukulele, banjo, violin, mandolin and wind instrument.2. Equipped with a 120mAH rechargeable lithium battery. Ultra-low-power and auto power-off function saves energy.3. Designed accurately for great performance, high precise detection and sensitive vibration clip, tuning with ±1 cent accuracy.4. 360º rotational big clear LCD screen, multi angle view rotational clip design and excellent visibility5. 30 Days Unconditional Money Back Guarantee Backed Up By Our Awesome Customer Support, you can rest assured to buy our products. Specifications 3 In 1: Metronome, Digital Tuner and Tone Generator Tuning Instrument: Guitar, Bass, Violin, Ukulele, Banjo, MandolinTuning Keys: Chromatic, F, Bb, EbDetection Range: 27.5Hz (A0)-4186Hz (C8) Tempo Range: 30-280bmp Tuning Mod: Clip on pick up Tuning Accuracy: ±1CentA4 Calibration: 430-450 HzCharging Voltage: 5V Auto Power: Ultra-low-power and auto power-offPower Supply: Built-in Rechargeable Lithium Battery(120mAH) Net Weight: 51gMulti Use Donner DT-4 is a metronome, digital tuner, tone generator 3 in 1 multi-instrument device for guitar, bass, violin, ukulele, banjo, mandolin and wind instrument.With a broad range of 30-250 Beats Per Minute, 8 different rhythms and accents, this metro-tuner will improve your timing to adapt to different musical stylesLarge Display Multi-color backlight display allows smooth and highly accurate tuning in noisy, dim or well-light environment. A 360 degree turn construction and adjustable padded clamp, provides best viewing angles and maximum positioning flexibility.Energy Save Environment-friendly ABS plastic applied, no inferior material used. FCC/CE certified, ROHS compliant.And it is equipped with a 120mAH rechargeable lithium battery. Ultra-low-power and auto power-off function saves energyCaution 1.Do not use alcohol, gasoline and other strong cleaning chemicals to clean the LCD screen or body case.2.Do not hit or the body case or screen beside the top. Otherwise it will lead to machine failure.3.Do not use or keep at high temperature, heat, humility place.4.When the battery is insuffucuent, please use the charger to charge.5.If the product is updated and improved, without notice change.Package included 1 X Donner DT-4 3 in 11 X USB Cable1 X Product ManuelReturn policy: We strive to ensure complete customer satisfaction with every transaction. If you have any quality problem with the product within 90 days after purchase, you could contact us for a refund or replacement. 1-2 inches error of the measuring is a reasonable range due to different measurement methods. Pls confirm the size according to our description instead of the photos. Return by Dimensions problem is not accepted. If return for size, color, material or other reasons that not caused by quality problems, we're sorry that customer has to charge the return shipping cost. Items must be returned in the original manufacturer's packaging. We strongly recommend you keep your packaging for at least the first 90 days after purchase.