The Intelli IMT-500 Clip-On Chromatic Tuner makes it easy to keep in tune. Just clip the IMT500 directly to your instrument, turn it on, and tune up. Able to tune your guitar, bass, ukulele, violin, mandolin, banjo, brass & woodwind instruments, and much more, this clip-on tuner provides accurate tuning for a wide range of instruments. From studio to stage, tuning is easy and convenient. *** PLEASE NOTE: The tuner has a clear protective plastic covering the screen. REMOVE THIS. It may appear scratched but it's the clear protective plastic that's covering the screen that makes it appear this way. It's not scratched, used, defective, or damaged. It's brand new and the protective plastic needs to be removed. ***