D'Addario DADDARIO Clip-on Tuner for Viola PW-CT-25 The Micro Viola Tuner features a compact design with a highly visible full-color display. It securely attaches to the viola with a lever-lock clamp that won't damage the instrument, and it's easy to attach and detach. In addition to its precise tuning capabilities, it also boasts a unique mounting system and fast pitch response, making it an effective practice tool for referencing and improving intonation during performance. Modified Micro Violin Tuner for larger viola bodies Padded mount to match standard viola sizes and full-size violins Full-color display Easy-to-use lever-lock clamp Calibration range: 410-480Hz Compatible with body thicknesses of 41mm or more I tried it once, but it's difficult for me to see due to my glasses' focus (which is adjusted for the music stand distance), so I'm putting it up for sale. Arrived on 12/24, used only once. Please note that the instruction manual was not included from the beginning. Thank you. #Viola #StringedInstrument #Strings #Tuner #Violin #Instrument