Patented three auto positioning design realize auto neck joints, layer and starting positioning
(Patent No.: ZL20192155580.5. Patent type: utility model)
(Patent No.: ZL20192155580.5. Patent type: utility model)
suitable for elder both elder children and adult collar
which can avoid the collar extra refining.
New design modes, auto and manual layer function
and can be switched wilfully
Auto counting
I am optional with IOT technology, lets experience
the future technology .