The earbuds display the angle at which you habitually lower your head and tell you
angle of inclination of your cervical vertebrae according to four levels:
normal/mild/high/too high. The higher the angle, the greater the pressure on your
cervical vertebrae, and the more attention you need to pay to cervical health in daily
life.
After the Cervical Vertebrae Relax Reminder feature is enabled, the earbuds will
detect your inactivity. If you wear the earbuds for a long time without obvious
cervical movement, the earbuds will play a surround sound effect to alert you to
get up, move around, and move your neck to relax your cervical vertebrae.
Note that when enabling the cervical protection feature for the first time, you need
to follow instructions on the page to calibrate your sitting posture. Wear both
earbuds at the same time. After starting calibration, keep your head and neck
upright. The calibration takes about 5 to 10 seconds. After calibration is completed,
the earbuds will play a tone.
7. Updating the earbuds and restoring factory settings
<1> Update firmware.
If there is a firmware update, a red dot will appear on the right side of the Check for
updates option on the device page. When updating the earbuds, take out both
earbuds and keep them as close to the phone as possible until the update is
successful.
