[. . . ] Congratulations on the purchase of your Bushnell Night Vision Product. bushnell Night Vision products are comprised of high quality image intensifier tubes and optics. [. . . ] This allows you to see in complete darkness where no ambient light source, such as moonlight, is available. To activate, simply press the button (4) located next to the "ON" button. direct the device at an object at a distance approximately 100 yards and rotate the eyepiece (5) to give the best quality image. After the adjusting, do not rotate the eyepiece any longer irrespective of the distance and other conditions. Direct the device at the subject to be viewed and adjust the final focus by rotating the objective lens (1) until the image quality is optimal. This device can be mounted on any tripod with a ¼" tripod socket. However, when the unit is brought back into a warm environment, you must wait approximately 5 hours before using the unit again. Damage may occur due to condensation that may have accumulated on the internal circuitry of the unit. These vary from device to device and are cosmetic blemishes inside the device. Check the battery contacts to ensure it is clean and free of corrosion. If still no improvement, clean the lenses; they may be foggy or dusty. Bright light sources such as headlights may cause visibility to degrade or disappear completely. It may also flash during the first few seconds of use in dark environments. Your Bushnell Night Vision device was designed to provide many years of reliable service. [. . . ] Any return made under this warranty must be accompanied by the items listed below: 1) A check/money order in the amount of $10. 00 to cover the cost of postage and handling 2) Name and address for product return 3) An explanation of the defect 4) Proof of Date Purchased 5) Product should be well packed in a sturdy outside shipping carton, to prevent damage in transit, with return postage prepaid to the address listed below: For products purchased outside the United States or Canada please contact your local dealer for applicable warranty information. [. . . ]