A Tribute to the Original Clip-On Tuner

In 2005, Cherub released the WST-550G — the first-ever clip-on digital tuner and a genuine turning point in how guitarists tune on the go. The WST-551C, part of the Orig-Tune line, revives that original spirit with updated internals: a segmented color LED display, a high-sensitivity piezo sensor, and Cherub's latest tuning technology, all wrapped in a simple two-button design.

With only two controls — power/tune and reference pitch — the WST-551C is built for musicians who want to clip it on and tune without digging through menus. The LED indicators glow green when a string is in tune and red when it's sharp or flat, so accuracy is visible at a glance from a few feet away.

Ultra-Clear LED Display
Bright, segmented color LEDs make it easy to read tuning status even in dim stage lighting.

Simple 2-Button Operation
One button for power and tuning, one for reference pitch — no menus to navigate.

±1 Cent Accuracy
A built-in high-sensitivity piezo sensor and Cherub's tuning engine deliver precise, responsive tuning.

Adjustable Reference Pitch
Set A4 anywhere between 435Hz and 445Hz to match your band or ensemble.

Rechargeable Battery
Internal 3.7V battery charges via USB-C and runs for roughly 2.5 hours per charge.

Compact, Lightweight Build
At just over 20g, it clips onto any headstock without adding bulk.