Quickview\r\n1.When you get this mouse first time ,please get 2*AAA battery insert\r\nit first .\r\n2.Rii wireless mouse not only for office ,but for other operations.\r\n3.The Mouse Power switch at the bottom of the mouse ,you could Power\r\non/off .\r\n\r\n\r\nSpecification\r\nType: Wireless mouse\r\nWireless Distance: 10m\r\nReceiver: Nano receiver\r\nColors: Black\r\nButtons:3\r\nDPI:1000\r\n\r\n\r\nPackage details\r\nWireless mouse x2\r\nUSB nano receiver x2