Rexing V2 PRO User Manual page 16

Getting Started
Installation
4. Turning the Device On or Off
Press and hold the POWER button for a few seconds to turn on the device. A
welcome message will be displayed onscreen. To turn off the device, again
press and hold the POWER button for a few seconds. A goodbye message
will be displayed onscreen.
The V2 PRO will switch on or off automatically if you keep it connected using
the car charger. The camera will automatically start recording when it is
powered on. After the power is disconnected, the device will shut down after
3 seconds.
Note: If your car cigarette lighter provides constant power, the unit may
not turn on or off automatically with the car.
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