Rechargeable Clip-On Tuner with Flowing Color Display

The WST-915Li, part of NUX's Flow Tune Clip line, is a compact clip-on tuner built for guitarists, bassists, and other stringed-instrument players who want fast, accurate tuning without hunting for a 9V battery or a cable. Its stainless-steel clamp attaches securely to a headstock, and the ball-joint mount lets you angle the color display for a clear view on a dark stage or in a bright rehearsal room.

At its core is a high-sensitivity piezo pickup paired with Cherub's proprietary tuning engine, delivering ±1 cent accuracy across a wide A0–C8 tuning range. Beyond standard chromatic tuning, the WST-915Li includes a Guitar Compensated (G CPS) mode inspired by James Taylor's compensated tuning method — subtly offsetting each string by a few cents so chords ring truer across the fretboard.

A built-in rechargeable lithium battery (charged over USB-C) keeps the tuner running for up to 240 minutes per charge, and the reference pitch can be fine-tuned from 430Hz to 450Hz in 1Hz steps to match any ensemble.

5 Tuning Modes
Chromatic, Guitar (Standard), Guitar (Compensated), Bass, and Ukulele modes cover nearly every stringed instrument.

±1 Cent Accuracy
A high-sensitivity piezo sensor and Cherub tuning technology keep every string precisely in tune.

4 Display Modes
Two Strobe and two Arrow display styles on a vivid, flowing color screen that's easy to read at a glance.

Rechargeable Battery
Built-in lithium battery delivers up to 240 minutes of use per charge via USB-C — no disposable batteries needed.

Adjustable Reference Pitch
Dial in A4 anywhere from 430Hz to 450Hz in 1Hz increments to match any room or ensemble.

Durable Stainless-Steel Clamp
A sturdy metal clamp and ball-joint mount hold firmly to any headstock while letting you angle the screen for easy viewing.