Compact， lightweight and adjustableDual flexible armsYou can attach this lamp to your Kindle by the large clipOptical grade lens provides evenly distributed light with no hot spotsExtra strong clip grips almost anything， or use free standing as a task lightPowered by 3 AAA batteries (not included)Color of Light : Bright WhiteColor of Shell : BlackTotal Length (mm): 312Length of Flexible gooseneck (mm): 183Runs off batteries or USB power cableCan be used free standing or clipped on to pianos， music stands， orchestra pits， schools， dark clubs， etc.Choose the intensity of your two LEDs by pushing the button once or twice， giving you exactly the amount of light coverage you need.Please Note:USB Power Line and Batteries are not included.