D'Addario Micro Rechargeable Viola Clip-On Tuner

Low-profile, rehearsal-proof tuning for viola

The D'Addario Micro Rechargeable Viola Tuner is a sleek, case-friendly clip-on chromatic tuner made specifically for viola players who want accurate tuning without a bulky device on the instrument. Its built-in piezo transducer reads your instrument's vibration (not the room), so it stays dependable in noisy orchestra rehearsals, group lessons, and backstage warmups where microphone-based tuners can struggle.

Designed to attach securely and gently, the padded, non-marring lever-lock clamp holds firmly while still allowing easy application and removal—ideal for daily use on student and professional instruments alike. The full-color, reversible backlit display is easy to see in low light and from different angles, making quick touch-ups between pieces simple and discreet. Rechargeable convenience keeps your setup streamlined: charge via USB-C and get up to 22 hours of tuning life per charge.

Features & Specifications

• Instrument Fit: Designed for viola; fits standard viola sizes
• Sensing Type: Piezo vibration pickup for reliable tuning in noisy environments
• Display: Full-color, reversible backlit display for easy viewing in low light
• Calibration Range: A4 = 410–480 Hz to match ensemble pitch standards
• Clamp Style: Non-marring, lever-lock clamp for secure attachment and easy removal
• Rechargeable Power: USB-C rechargeable with up to 22 hours of use per charge
• Convenience: Auto power-off helps conserve charge between uses
• Model: PW-CT-35