Popular Customized Fashion Harry Potter Wireless Mouse Good For Girl's 2.4 GHz -3 Adjustable DPI Levels - Nano USB wireless receiver (SB-W-2207) Ergonomically designed,confortable to use.3 Adjustable DPI Levels,slow speed and fast speed for your convenience. High quality mouse for lifetime using. New Technology Easy plug and play installation. PC and Mac friendly Well and unique design wireless mouse Powered by two AAA battery (not included)