Korpa 
JOYO JT-480 Rechargeable Color Screen Clip-On Guitar Tuner
The JOYO JT-480 is a next-generation clip-on tuner engineered for modern musicians who demand precision, fast pitch detection, and eco-friendly convenience. Featuring an advanced vibration sensor and a high-accuracy detection algorithm, the JT-480 locks onto your pitch instantly—eliminating ambient room noise and lag even in loud, high-volume stage or rehearsal environments.
Designed for maximum versatility, the JT-480 features a bright, color-coded LCD display and a 360-degree rotatable clip, giving you an effortless view of your tuning status from any headstock angle.
USB Type-C Rechargeable Performance
Say goodbye to coin-cell battery replacements. The JT-480 is equipped with an integrated 3.7V / 100mAh lithium-ion rechargeable battery.
With its built-in USB Type-C charging port and real-time battery status indicator, you can easily top up your tuner using a standard USB wall charger, laptop, or portable power bank. Its smart auto power-off feature automatically powers down the unit after 10 minutes of inactivity to conserve battery life.
Multi-Instrument Tuning Modes and Adjustable A4 Calibration
Built to cover a wide range of stringed instruments, the JT-480 includes dedicated tuning modes for Chromatic, Guitar, Bass, and Ukulele. It supports 4/5-string basses, 6/7/8-string guitars, and includes flat-tuning capabilities.
For orchestral, ensemble, or non-standard performance needs, the JT-480 supports adjustable A4 calibration from 430 Hz to 450 Hz, featuring a convenient one-touch reset back to standard 440 Hz. Wrapped in a lightweight 34g body with protective silicone padded jaws, the JT-480 is the ultimate portable tuner for daily practice, studio tracking, and live shows.