Donner Guitar Tuner Clip on-Accurate Chromatic,Acoustic Guitar Bass Violin Ukulele Tuner DT-2 1.BUILT TO LAST - Strong and Resistant for Beginners and Professionals on the Road 2.SUPER EASY TO USE - One Button Controls Everything. Clip it, Turn it on and You're Ready! 3.ROTATIONAL BRIGHT DISPLAY - Multi-Angle View with a Rotational Clip Design 4.ACCURATE - High Precise Detection with a Sensitive vibration Clip, It will Be in Tune Fast 5.BACKED BY A 1 YEAR "NO QUESTIONS ASKED" GUARANTEE. If it doesn't work for ANY reason just return it for a replacement 1. Built to Last<span class="a-text-bold">-</span>Strong and durable, made of high quality material. 2. Keep your instrument in tune every time 3. lightweight and super easy to usE - One Button Controls Everything. 4. 360 ROTATIONAL LCD SCREEN<span class="a-text-bold"> -</span> Multi-Angle view Rotational Clip Design and Excellent visibility 5. ultra-low-power consumption<span class="a-text-bold"> -</span> Battery 3V CR2032 Included in the package <span class="a-text-bold">6.</span> High performance - High Precise Detection and Sensitive vibration Clip 7. designed accurately for great performance. - Chromatic, acoustic and electric guitars, bass, ukulele, banjo, violin and wind instrument 8. easy tuning on stage, clip on style<span class="a-text-bold">.</span> - Easily applied and adjusted with one hand. It can be conveniently parked on the head stock when not in use. 9. structure- Conforms perfectly to the head stock. It ensures a good performance and protects your instrument <span class="a-text-bold">Tuning Instrument: </span>Chromatic, Guitar, Bass, Violin, Ukulele, Banjo and Wind Instrument of Key F, Bb, Eb <span class="a-text-bold">Tuning Keys:</span> Chromatic, F, Bb, Eb <span class="a-text-bold">Tuning Mod:</span> Clip on pick up <span class="a-text-bold">Detection Range:</span> A0 (27.5Hz) ~ C8 (4186Hz) <span class="a-text-bold">Tuning Accuracy:</span> 1Cent <span class="a-text-bold">A4 Calibration: </span>440Hz <span class="a-text-bold">Clear LCD screen :</span> Clear View with a big HTN LCD screen and backlight <span class="a-text-bold">360 Rotational Clip:</span> Multi-Angle view with the 360 rotational clip design <span class="a-text-bold">High Quality Clip:</span> High Precise Detection and sensitive vibration clip <span class="a-text-bold">Auto Power:</span> Ultra-low-power and auto power-off <span class="a-text-bold">Power Supply: </span>3V(CR2032) <span class="a-text-bold">Weight:</span> 20g (without battery)