D'Addario Nexxus 360 Rechargeable Viola Tuner

Bright, discreet tuning built for viola in real ensembles

The D'Addario Nexxus 360 Viola Rechargeable Tuner is a modern clip-on chromatic tuner designed for fast, accurate tuning in the places violists actually play—busy classrooms, full orchestras, and loud backstage areas. Instead of relying on a microphone, its high-performance piezo pickup reads your viola's vibrations, so the tuner stays stable and responsive even when the room is noisy.

The extra-bright, full-color LED display rotates 360 degrees, letting you set a comfortable viewing angle without adding visual clutter to your setup. Rechargeable USB-C power means no disposable batteries to replace, and up to 24 hours of tuning time per charge makes it a practical everyday tool for lessons, rehearsals, and performances. The non-marring clamp attaches securely and removes easily, helping protect your instrument's finish while delivering consistent readings.

Features & Specifications

• Instrument Focus: Optimized for orchestral strings; ideal for viola
• Pickup Type: High-performance piezo vibration sensor for accurate tuning in noisy environments
• Display: Extra-bright, full-color LED with 360-degree adjustability for easy viewing
• Calibration Range: A4 = 415–465 Hz to match ensemble pitch standards
• Rechargeable Power: USB-C rechargeable; up to 24 hours of use per charge
• Auto Power-Off: Helps maximize use time between charges
• Clamp: Non-marring clamp for secure attachment; place on the shoulder area for best accuracy
• Included: USB-C charging cable
• Model: PW-CT-31