• Rechargeable Mini Tuner
• 360°double axis swivel clamp to allow any viewing angle.
• Compact and Portable., High Brightness
• Color-changing backlight (White turns green means in tune).
• Calibration: 410Hz~490Hz
• Accurate tuning in noisy areas
• High precision ultra fast tuning
• LED Screen, that's easy to read

Specifications:

• Tuning Mode: Chromatic
• Detection Method: Vibration Tuning
• Range: A0 (27.50 Hz) - C8 (4186 Hz)
• Precision: ± 0.5 cent Response Time: <10 ms
• Power: 3V (Rechargeable lithium battery)