Feature:1. A combination of a metronome and a tuner with a cut and tune screen.2. Tuning points include 12 medium rates, guitar, bass, ukulele, and violin.3. The built-in metronome can shoot up to 10 times.4. The metronome function is suitable for a variety of time signatures: 1/4, 2/4, 3/4, 4/4, 3/8, 6/8 or more, each of the many rhythms available.5. Jack headphones allow you to connect headphones or amplifiers.6. Color LCD display and Duo tuning - display, metronome and tone reference status. Specification:Brand: FangerMaterial: ABS Size: 100*65*15mm Calibration Mode: C Calibration Range: 0A-8C A4 Frequency Range: 430Hz-450Hz Test Accuracy: 1 Minute Beat Speed Range: 30-280bpm Beat Time: 0-9Time Value: 0-8Ball Bounce Error: 1% Note:Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Please allow 1-2cm measurement deviation due to manual measurement.1 X Guitar Tuner1 X User Manual