Wireless usb optical mouse with headlight and fashion sport car design,cool gaming mouse for laptop computer,good choice for using or as gifts for kids,women,men Powered by 2 * AAA battery (not included),Dimension: 4.4(L)*1.42(H)*2.16(W)inch,Net weight: 2.12 oz,1600 DPI,3 Buttons Plug and Play, no any drive is needed;Power-saving sleeping function,if the mouse is not used for short time, it will turn to power saving mode to save energy 2.4GHz wireless digital transmission technology, operation distance is up to 10 meters Support most operating system,Windows 98 / ME / NT / 2000 / XP / Vista / Win 7 / Linux or Mac OS and more