When you need personal light, this hands-free light delivers features and practical usefulness unmatched by other portable lights: wide & bright light from 3 LEDs that lights up 2 book pages, 2 clip-on Relaxation Filters, extra long battery life, & optional USB Power Kit. Read Everything: It's a true reading light that works with all printed books, Kindles and other eReaders (whether naked, skinned, or covered) PLUS newspapers, magazines, newsletters, loose documents, and other items that can't support a clip-on light. Called the "best personal reading light we have come across" by a major travel blog. Included are two 2 special Relaxation Filters that snap-on the light: BNR Orange for a softer, warmer light that blocks blue light (especially useful when reading in bed); BNR Red to block blue light and reduce ambient light for sensitive bed partners, or to help maintain night vision when switching between lighted and dark conditions. Standard alkaline AA batteries (not included) last an extra long 100 hours, far longer than flashlights and clip-on lights resulting in a lower cost to use (and fewer batteries in the trash). The longer battery runtime than other lights is especially valuable during a power outage & when traveling. This light is still bright when others have gone dim. Worn around the neck, there's no need to shift it when reading paperbacks. It's great for reading, crafts, travel, & walking in dim or dark places such as an attic or around the house during a power outage. Use it for writing journals, working, camping, and changing diapers at night. A product review sums it up saying, "An item you weren't sure you needed quickly becomes indispensable." Optional accessories include USB/AC and DC power adapters and a kit with 3 clip-on magnifiers.