The LumiVisor (LV-10) from Carson is a fully adjustable, head worn magnifier with multiple, built-in acrylic lenses. By combining the multiple lenses together, users can achieve either 2x, 3x, 5x or 6x power magnifications. The head strap is fully adjustable and can be adjusted to the shape of your head using the quick-release buckle to lock the strap in place. The LumiVisor is LED Lighted with 3 super bright LED bulbs (3 AAA batteries not included). The LED light can be adjusted to position the light to where it is needed most. The LumiVisor can also be adjusted up or down as needed. The LumiVisor can be used for a variety of purposes ranging from hobbies, crafts, model building, soldering, jewelry making, reading, inspection of coins and stamps and other tasks. It is a great addition to add to your garage or work space. The LumiVisor is backed by Carson's limited lifetime warranty. At Carson, we strive to make sure our customers are 100 percent satisfied with the quality of our magnifiers. Carson will repair or replace your magnifier if it is found to have manufacturing defects in materials or workmanship. Please contact Carson for additional warranty details.