Feature:1. Accurate and Versatile: This clip-on tuner is designed to accommodate a variety of instruments, including acoustic guitars, bass guitars, ukuleles, and violins. Its chromatic tuning mode allows for precise tuning in any key, while the A4 frequency range of 410Hz-460Hz ensures accuracy.2. Convenient Rechargeable Battery: Equipped with a built-in lithium battery, this tuner can be easily charged using the included Type-C cable. With a charging time of approximately 15 hours, it offers a long-lasting battery life of about 3 hours, ensuring uninterrupted tuning sessions.3. Compact and Lightweight Design: With a smaller size and sleek design, this tuner is not only portable but also adds minimal weight to your instrument. Its minimalist TFT color screen dynamically displays the tuning process, providing a visually appealing and user-friendly experience.4. Enhance Your Musical Journey: More than just a tuning tool, this clamp-style tuner serves as a companion to enhance your musical experience. Whether you're jamming with friends, performing on stage, or practicing at home, this tuner helps you achieve perfect pitch and stay in tune.5. Reliable Performance: With a wide pickup range from A0(27.5Hz) to C8(4186.00HZ) and a tuning accuracy of 0.5 cents, this tuner ensures precise and reliable tuning results. The clear and intuitive display shows the note name, tuning deviation in cents, and pitch range, allowing for effortless tuning adjustments. Trust this tuner to be your go-to accessory for all your tuning needs.Specification:Music Programs: Chromatic, Guitar, Bass, Violin, ukulelePhonetic Name Display: A, A#, B, C, C#, D, D#, E, F, F#, G, G#Pick-up Range: A0 (27.5Hz) - C8 (4186.00HZ)A4 Frequency Range: 410Hz-460HzSound Score Display: -50~+50 sound scoresCorrection Error: 0.5 sound pointsPower Supply: Built in lithium battery 3.7V/90mAhCharging Time: About 15 hoursBattery Life: About 3 hoursCharging Voltage: USB powered 5VProduct Material: PlasticProduct Color: BlackProduct Size: 41 * 60 * 21mm/1.6 * 2.4 * 0.8inchPackage List:1 * Tuner1 * Charging Cable1 * Instruction Manual