Flashlight wavelength: 850nm. Newest night vision scope. It will not emit visible light and infrared luminous when used at night, so that your position can be kept hidden. -To turn off the device, long press the power button (on/off button) on the back of the display, the system will automatically save pictures and movies, and then you can move the switch on the battery box to the "off" side to turn off the device and turn off the power.
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