Digital Guitar Tuner with LCD Display for Bass and More - High Precision Calibration

1.product guide:
Help quite a lot of tuning: 6 C normal pitch bass and string devices, guitar, bass, ukulele, violin, tuning vary: OA (27.5Hz) -8C (4186.01Hz)
Extremely delicate tuner, metronome beat mode, splendid for noisy environments, appropriate for music lecturers, skilled and junior gamers
· Simple to learn and function, clear LCD digital show, straightforward to learn, mechanically shut down if not operated, automated shutdown inside 5 minutes.
Environmentally pleasant ABS plastic purposes, no inferior supplies. FCC and CE certification, lead-free certification