Features: 1.Clip‑on tuner with minimalist design possess lightweight and easy to carry 2.Four tuning modes with one‑key switching to meet daily use, suitable for twelve equal temperament instrument, guitar, bass, ukulele 3.Intelligent power saving, the machine will automatically shut down after five minutes without valid signal input 4.1 cent tuning accuracy will provide you with fast and accurate tuning 5.Dual color screen display make the tuning result clear at a glance, simple operation and easy to use 6.Clip?and?use, built?in buzzer chip pick up sound, which possess high accuracy 7.Personalized designed product support flexible rotation for multiple angles with wide viewing angle and easy operation specification:Item Type: Clip tuner Material: ABS Tuning Range: A0(27.5Hz)-C8(4186.0Hz) Tuning Items: Twelve equal temperament instrument, guitar, bass, ukulele Tuning Accuracy: 1 cent A4 Frequency Range: 440HZ Pickup Method: Clip-on Tuning Mode: Automatic Power Consumption: Tuning state current 20mA, shutdown state current 10uA Power: 3V (built-in CR2032 button battery) Size(length x width x height): Approx.45 x 28 x 38mm / 1.8 x 1.1 x 1.5in Net Weight: 19 g / 0.7 oz(approx.) PackageList:1 x Clip Tuner Note1. When replacing the battery, please pay attention to the polarity of the battery. 2. If the product is stored for a long time, please remove the battery.