Clip-on Tuner for Guitars and String Instruments J-H Technology Black Square Looking for a fast, accurate and compact tuner for everyday practice, rehearsals or performances? J-H Technology Black Square is a universal **clip-on tuner** with a modern square design and a clear LCD display. It attaches directly to the head of the instrument, where it captures string vibrations using a built-in piezo sensor. As a result, it provides quick and precise tuning even in noisy environments, regardless of ambient noise. Multiple tuning modes and a clear display The tuner offers preset modes for **acoustic and electric guitars, bass guitars, violins, ukuleles** and also a **chromatic mode**, which allows you to tune any other string instrument. The brightly backlit LCD display changes colour indication (or pointer movement), ensuring instant and intuitive tuning accuracy control even on a dark stage. 360° rotation and energy-saving operation Thanks to the 360-degree rotating joint, you can adjust the display to the angle that suits you best. The sturdy clip is equipped with soft protective pads that protect the lacquer of the headstock from scratches. The tuner is powered by a standard CR2032 battery and features an automatic shut-off function when idle, significantly extending battery life. Main advantages of the J-H Technology Black Square tuner: Precise piezo tuning: Responds to instrument vibrations, not ambient noise. Chromatic mode and special modes: Designed for guitar, bass guitar, violin and ukulele. Clear LCD display: Excellent readability in light and on a dimly lit stage. 360° swivel joint: Allows the setting of an ideal viewing angle. Gentle clip: Rubber protective pads prevent damage to the instrument's lacquer. Compact and light: Weighs only a few grams, ideal for carrying in the instrument case. Automatic shut-off: Saves battery power during longer periods of inactivity. Technical parameters and specifications Brand / Manufacturer J-H Technology Model / Name Clip Tuner Black Square Type of tuner Clip-on (vibrations / piezo) Tuning modes Chromatic (C), Guitar (G), Bass guitar (B), Violin (V), Ukulele (U) Display Lit LCD Tuning range A0 (27.5 Hz) – C8 (4186 Hz) A4 calibration 440 Hz Power supply 1x CR2032 battery (included / standard) Color Black Country of origin China Warranty 24 months Safety warning Contains a small battery - keep out of reach of small children