Siig 2.4 GHz Mouse, Black (JK-WR0A12-S1) 2.4GHz wireless technology supports Windows based laptop and desktop computer systems 6 buttons including next/previous controls for Easy web browsing or photo viewing Dual level adjustable DPI (800/1000) meets multiple application needs On/off power switch and smart power management maximizes battery life Nano receiver with Built-in storage compartment for ease of carry