[. . . ] Ambient light at the target is sensed by the electronic circuit, and the dot intensity is adjusted. [. . . ] To replace the battery, press the release pin and unscrew the Zoom Knob completely out. Remove the old battery and replace with a CR-1/3 N 3Volt Lithium battery. Releasing both snaps at the same time will cause the Electronics Package to be expelled with a spring. Your Bushnell® product is warranted to be free of defects in materials and workmanship for two years after the date of purchase. In the event of a defect under this warranty, we will, at our option, repair or replace the product, provided that you return the product postage prepaid. This warranty does not cover damages caused by misuse, improper handling, installation, or maintenance provided by someone other than a Bushnell Authorized Service Department. [. . . ] In Europe you may also contact Bushnell at: Bushnell Outdoor Products Gmbh European Service Centre MORSESTRASSE 4 D- 50769 KÖLN GERMANY Tél: +49 (0) 221 709 939 3 Fax: +49 (0) 221 709 939 8 This warranty gives you specific legal rights. [. . . ]