Night Shadow Night Vision Binocular

5
Make sure that the unit is turned off.
Unscrew 90mm lens off the body of the Night Shadow
Screw the doubler onto the back of the lens.
Tighten the screw on the Doubler (screw-driver is provided).
Screw in the lens with the Doubler back into the main body.
USING THE DOUBLER (OPTIONAL)
NOTE: When attaching the doubler do not be afraid to use a little force.
Doubler