Feature: 1. Small in size and convenient to carry. The detachable body has a magnet on the back of the body for easy placing. 2. Clear and large Liquid Crystal Display two-colour screen enables easier viewing for more convenience in tuning. 3. Including various modes for different instruments, such as violin, bass, guitar, ukulele, banjo, and so on. 4. The silicone protective pads increase the contact area, and prevents the tuner from sliding and abrasion. 5. The USB interface supports charging the rechargeable battery, and the tuner also has power saving function. Specification: Item Type: Guitar Metronome Tuner Product Material: Silicone + Electronic Components Screen: Colour Screen Button: 5-Key Operation Colour: Black Flat: None Power Supply: 120mAH Rechargeable Lithium Battery (delivered with built-in battery) Tuning Range: A0 (27.5Hz)-4186Hz (c8) Pickup Mode: Vibration Pickup A4 Benchmark: 430-450Hz Tuning Accuracy: ±1 Cent. Package List: 1 x Guitar Metronome Tuner1 x Clip1 x USB Cable1 x User Manual Note: When the tuning item is set to twelve equal temperament, the tuner will automatically detect and display the corresponding note name; when the tuning item is set to a certain instrument, the tuner will automatically detect and display the the corresponding string sequence and the corresponding note name of the instrument.