Guitar Tuner -Suitable for guitar bass violin ukulele digital electronic tuner acoustic and LCD display-high precision calibration tuner_

product manual: 1. Suitable for musical instruments: guitar, bass, violin, ukulele, 2. Tuning range: A0 (27.5Hz) ~ C8 (4186.01Hz) 3. Accuracy: ±1cent 4. Power supply: 3V (including CR2032 lithium battery) 5.A4 frequency: 440Hz package instruction: 1. Each box (1 tuner, 1 user manual, 6 guitar Plectrums) 2. Color: black 3. Weight: 19g 4. Size: 5x2.6x7.6cm 5. Material: ABS plastic Normal use 1. Press and hold for 2 seconds to turn on the tuner. Prepare the tuner for tuning and select the tuning item. 2. When you play the instrument, the tuner displays the note name and accuracy: if the indicator points to the left, the note is flat; if the indicator points to the right, the note is sharp; if the indicator remains vertical and The screen is green, the notes are consistent.(The tuner must be clamped on the instrument to tune.) Clip the tuner to your instrument. Adjust the tuner for the best viewing angle.