2.4G wireless mouse optical mouse E160

2.4G wireless mouse optical mouse E160 Package Contents: Mouse, Nano-receiver , Battery, User documentaion,Warranty&quality assurance cards Advantage: 1.Plug it in once and forget about it.It's so small it stays in your USB port so you won't lost it.If you do need to remove it the receiver stores inside the mouse. 2.You get a powerful ,reliavle connection,with virtually no delays or dropouts,even in the busiest wireless environments. 3.An on/off switch helps conserve power.and a smart sleep model extends battery life. 4.Between the 800/1200 DPI free conversion,you can adjust it to achieve the most appropriate DPI to work and game are handly.