User's Manual

8
(2)Battery replacement
If the product is not used for a long time (over 3
months), please take out the batteries.
(3)Type C connection for power supply (The cable is
optional)
The product power can be supplied by plugging into DC 5V
external power supply through a Type C interface.
10.Function Setting
(1) User mode
In standby mode, press the " " button to enter the user
group selection interface. Then press the " " button again
to switch and select user groups.