PRECISION TUNING: Crafted with a high-precision piezo transducer, this tuner detects your instrument's vibrations via direct contact, ensuring quick and accurate tuning every time. Its broad calibration range of 410-460Hz is designed for optimal results, significantly reducing the impact of ambient sound interference, making it the ultimate tuner. UNMATCHED LEGIBILITY: Featuring an advanced high-definition TFT screen, this tuner delivers an exceptional user experience. It is easily readable, even in bright lighting conditions, whether from sunlight or stage lights, allowing for a smooth and straightforward tuning process as notes are displayed on the screen effortlessly. 360-DEGREE ROTATABLE CLIPS: Provides exceptional viewing angles and maximum positioning flexibility. Suitable for both left or right-handed instruments, and ideal for instruments with small or large headstocks. Perfectly compatible with acoustic and electric guitars, basses, mandolins, banjos, ukuleles and more. EASY RECHARGE: Eliminate the need for changing or purchasing batteries and enjoy hours of uninterrupted tuning with this rechargeable tuner. Simply charge it using the included USB cable connected to any 5V USB power source when needed. ENVIRONMENTALLY FRIENDLY: Designed with low power consumption and an automatic shut-off feature that activates after 3 minutes of inactivity, this tuner is energy-efficient and helps prolong battery lifespan. Name: Anoma tuner Model: AT-800 Cents: -50~+50 cents Pickup range: A0 (27.5Hz) ~ C8 (4186Hz) Tuning Project: Twelve Equal Temperament A4 frequency: 410Hz~460Hz Tuning error: 0.5 cents Size: 80x41x27mm Note name display: A, A#, B, C, C#, D, D#, E, F, F#, G, G# Power supply: Rechargeable battery 3.7V/90mAh Charging time: Approximately 1.5 hours Charging voltage: USB powered 5V Battery life: Approximately 3 hours Colour: Black Material: Plastic Package Contents: 1 x Guitar tuner 1 x Magnetic charging cable Only the above package content; other products are not included. Note: Light reflection and different displays may cause the item's color in the picture to differ slightly from the actual product. Measurement allowed error is +/- 1-3cm.