The D’Addario Micro Rechargeable Viola Tuner easily and securely clamps onto your instrument without marring its finish. And with its fast pitch response and high-visibility display, it’s great for much more than tuning up your instrument. Leave it attached while you practice, and you can accurately reference your intonation. Sweetwater Academy of Music & Technology instructors have found the Micro Rechargeable Viola Tuner’s attractive, compact design and rechargeable battery make it the perfect tuning solution for violists. With padded mounts to fit most standard violas, the D’Addario Micro Rechargeable Viola Tuner is a smart solution to keep your instrument in tune and sounding its best.