Cherub Rechargeable USB Charging Cable Simple Slim and Compact Auto and Adjustable Reference Clip-on Tuner, Type-C Included, Easy-to-Read Display,

[A rechargeable clip-on tuner with a slim design that maximizes simplicity] Equipped with only the essential functions of a clip-on tuner, the WST-551C is designed to be as simple as possible, allowing anyone, from beginners to amateurs and professionals, to tune easily and accurately. It's ready to use right out of the box. [Simple Two Buttons and Display] Equipped with only the essential functions, the display is extremely simple. Even beginners will have no trouble tuning. When the pitch is correct, an LED in the center of the tuning meter lights up green. There are only two buttons, one for power and one for changing the reference pitch, so you won't accidentally enter a different mode. Equipped with a highly sensitive piezo sensor and the latest Cherub technology: The WST-551C's piezo sensor is extremely sensitive, effortlessly picking up even the low B notes of multi-string basses that clip-on tuners struggle to pick up. The latest tuning algorithm also enables fast, high-precision tuning. Note: Depending on the head's mounting location, sound pickup may be difficult. [Reference pitch can be changed (435Hz – 445Hz)] Depending on the instrument you use, the reference pitch may not be 440Hz. Even in such cases, the WST-551C's reference pitch can be changed between 435 and 445Hz, making it compatible with not only guitars and basses, but a wide variety of instruments. [Built-in rechargeable battery for up to 150 minutes of continuous use] The WST-551C has a built-in rechargeable battery, eliminating the hassle of having to change batteries every time. It can be used continuously for approximately 150 minutes on a single charge, eliminating the need for frequent charging. The charging terminal is also a standard USB Type-C port, so you can charge it anytime, anywhere.