Change Language
The device typically supports Chinese and English voice announcements.

1. Turn on the device by twisting the lower movable part clockwise.
2. Wait for the 10-second warm-up period to finish (the screen will count down).
3. Quickly double-click the side button while the device is in its standby or ready state to toggle between the available languages (Chinese or English).

Note: If double-clicking only switches between "Single" and "Multiplayer" modes, try long-pressing the side button or triple-clicking, as firmware versions may vary.

χρειάζεται βαθμονόμηση σε τακτά χρονικά διαστήματα (recalibration) και πως πραγματοποιείται;

The device does not require calibration.