Auto-ON, Rechargeable Precision

The Cherub WST‑645 is a clip-on tuner that combines convenience, precision, and portability with an innovative design. Its automatic power-on when turned up and power-off when turned down make it a discreet device that is always ready to tune, ideal for touring and quick sessions.

Thanks to its USB‑C rechargeable battery (3.7 V, 90 mAh), this tuner offers up to 6 hours of continuous use without the need for disposable batteries. Its highly sensitive piezo sensor ensures tuning accuracy of up to ±1 cent, covering a wide range from A0 (27.5 Hz) to C8 (4186 Hz).

It features 5 tuning modes adapted to different instruments: chromatic, guitar (standard), compensated guitar (inspired by James Taylor for more harmonic tuning), bass, and ukulele. Its color LCD screen is easy to read in any environment, even in low light.

Features:

• Auto-ON/OFF: turns on when lifted, turns off when lowered.
• 5 tuning modes: chromatic, standard guitar, compensated guitar, bass, ukulele.
• High accuracy: ±1 cent thanks to piezo sensor.
• Full range: from A0 to C8.
• USB-C rechargeable battery: 3.7 V / 90 mAh, up to 6 hours of use.
• Large color LCD screen for clear reading.
• Compact dimensions: 51 × 31 × 34 mm, lightweight at 25 g.
• Precise tuning in flat modes: includes “flat tuning” option b and bb.

Specs:

• Type: Rechargeable clip-on chromatic tuner
• Tuning range: A0–C8 (27.5 Hz–4186 Hz)
• Accuracy: ±1 cent
• Modes: Chromatic / Standard guitar / Compensated guitar / Bass / Ukulele
• Battery: 3.7V / 90mAh rechargeable via USB-C
• Battery life: up to 360 minutes
• Dimensions: 51 × 31 × 34 mm
• Weight: 25 g