D'Addario Eclipse Rechargeable Cello Clip-On Tuner

Fast, accurate tuning optimized for cello's low register

The D'Addario Eclipse Rechargeable Cello Tuner is a compact clip-on chromatic tuner designed for quick, confident tuning in lessons, rehearsals, and performance settings. Built with low-frequency instruments in mind, it responds smoothly to cello fundamentals and keeps readings stable—especially helpful in busy orchestra rooms where microphone-based tuners can be distracted by surrounding sound.

A bright, full-color vertical display makes tuning easy at a glance, and the dual-swivel design lets you set a comfortable viewing angle from the playing position. Rechargeable power keeps your setup simple: charge via USB-C and enjoy up to 24 hours of tuning time per charge, eliminating disposable batteries and keeping your tuner ready for daily practice. Auto power-off helps conserve charge between tunes, and the clip-on design makes it easy to keep in your case and use anywhere.

Features & Specifications

• Instrument Compatibility: Optimized for cello (and suitable for other low-frequency instruments)
• Low-Frequency Performance: Designed for clear response on lower registers
• Display: Full-color vertical screen for easy, at-a-glance tuning
• Viewing Flexibility: Dual-swivel design for the best angle on your instrument
• Calibration: A4 = 430–450 Hz
• Power: Rechargeable battery with up to 24 hours of tuning per charge
• Charging: USB-C charging (cable included)
• Convenience: Auto power-off helps conserve charge
• Model: PW-CT-28