Jazz up your car or desk space with this plasma globe With light beams at your very fingertips, this globe is powered by either battery or USB to serve both a portable and convenient purpose - whether you enjoy watching the electricity moving in your car, or simply enjoy a fun desk piece The device is powered by the USB cord (included).Features AC Use (with use of adapter). On/Off Switch. Dimension - 4 L x 6 W x 4 H in.