Real Tuner - Chromatic Clip-on Tuner for Guitar, Bass, Violin, Ukulele, Banjo, Brass and Woodwind Instruments - Bright Full Color Display - Extra Mic Function - A4 Pitch Calibration - Transposition Stylish Design with a Bright Full Color Display easy to Read Awesome Music Accessory with Great Accuracy, Precision and Sensitivity. Once you use it you will feel the Quality Easy to access all Functions on the Front Panel. No hidden buttons. Full 360 degree rotation Never again play music with an out of tune instrument. Suitable for both Novice and Professional musicians 3 Years Guarantee, no questions asked