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 Cent1Small in size and convenient to carry. The detachable body has a magnet on the back of the body for easy placing. 2Clear and large Liquid Crystal Display two-colour screen enables easier viewing for more convenience in tuning. 3Including various modes for different instruments, such as violin, bass, guitar, ukulele, banjo, and so on. 4The silicone protective pads increase the contact area, and prevents the tuner from sliding and abrasion. 5The USB interface supports charging the rechargeable battery, and the tuner also has power saving function. 1 x Guitar Metronome Tuner 1 x Clip 1 x USB Cable 1 x User Manual