Features: Cartoon clip-on tuner with soft silicon gel housing in cartoon owl shape. Suitable for chromatic/ guitar/ bass/ ukulele/ violin tuning. Color-changing backlight LCD display: white-- flat/sharp, green-- in tune. Rotatable design, flexible to adjust viewing angle. The tuner will automatically turn off to save energy if no signal in 5 minutes. Specifications: Color: Black/ White/ Blue/ Brown/ Pink (optional) Tuning Items: Chromatic/ Guitar/ Bass/ Violin/ Ukulele Tuning Way: clip Tuning Range: A0(27.5Hz) - C8 (4186Hz) Tolerance: ±1 Cent Calibration: A4=440Hz Response Time: ＜20ms Power Supply: 1 * CR2032 Battery (not included) Item Weight: 30g / 1.1oz Package Size: 13.5 * 10.5 * 3cm / 5.3 * 4.1 * 1.2oz Package Weight: 47g / 1.7oz Note: The instrument showed in the picture is not included. The battery is not included. Package List: 1 * Tuner