NS Micro Violin/Viola Tuner The NS Micro Violin/Viola Tuner features an easy-to-read, multi-color display in an attractive compact design. A non-marring, lever-lock clamp holds the tuner securely to the instrument while allowing easy application and removal. The precision violin/viola tuner is not only perfect for tuning, the unique mounting system and fast pitch response allow it to be used as an effective practice tool for referencing and improving intonation while playing. D'Addario electronic tuners are designed by musicians for musicians featuring intuitive features, easy-to-read displays and exceptional tuning accuracy. Features Features a non-marring, lever-lock clamp that holds the tuner securely to the instrument while allowing easy application and removal Built-in piezo transducer picks up instrument's vibration rather than sound Tri-color reversible backlit LCD screen makes it easy to tune in dark environments Wide calibration range (410Hz to 480Hz) Tunes both violins and violas Previous models of this tuner included a metronome, but this updated version does not have a metronome. Options: Violin Mount: Fits violins and violas up to 1.57" thick. Viola Mount: Fits violas 1.5" to 2.25" thick