This 2 LED Disney Mickey Mouse disc light is flexible and can be manipulated in multiple directions for ease of use and full-page illumination. It is available in several Disney character silicone inserts and will secure easily to e-readers and books thanks to an easy-to-attach clip. The unique shape of the light allows direct illumination on pages or the e-book screen and produces less glare than standard light bulb reading lights. It also makes it much easier to read for extended periods of time and places less strain on the eyes.WITHit has engineered this reading light to last a long time while being an incredibly cost-effective solution for those who are looking for a portable reading light. It is powered by CR2450 lithium coin cell batteries, with two included in the packaging. You can purchase replacement batteries online in larger quantities for as little as $0.25 cents per unit.