TFT Color Screen Rechargeable Chromatic Tuner AT-800 The tuner features a TFT (Thin Film Transistor Liquid Crystal) display, which is widely used in mobile phones, televisions, and car navigation systems. Its features include a dynamic scrolling animation for the tuning display, charging via the included USB cable, pitch adjustment with the calibration button, and an auto-off function. ■ Tuning mode: Chromatic ■ Scale: A, A♯, B, C, C♯, D, D♯, E, F, F♯, G, G♯ ■Detection range: A0 (27.5Hz) to C8 (4186.00Hz) ■ Reference pitch: 410Hz to 460Hz ■ Cent display: -50 to +50 cents ■ Accuracy: ±0.5 cents ■ Power supply: 3.7V/90mAh lithium polymer battery ■ Charging time: Approximately 1.5 hours ■ Continuous battery use time: Approximately 3 hours (when fully charged) ■Charging voltage: USB power, 5V ■Size: 80 x 41 x 27 mm ■Mass: 17.5 g ■Accessories: Instruction manual, USB magnetic charging cable
