5-Buttons 2.4G Wireless Vertical Optical Mouse With Built-in Lithium Battery， Ergonomic Design， 800 / 1200 /1600DPI

• Compatible with Mac OS X， Linux and all versions of Windows.
• Built-in 500mA rechargeable battery， auto-sleep feature conserves power and extends battery life.
• 800 / 1200 / 1600 DPI Resolution Optical Tracking Technology provides more sensitivity than standard optical mice for smooth and precise tracking on a wide range of surfaces.
• Added next/previous buttons provide convenience when webpage browsing; the best choice for internet surfers， gamers and people who work at length at the computer.
• Package includes: 1 wireless vertical ergonomic optical mouse (built-in lithium battery included)， 1 2.4G USB receiver， 1 USB cable and 1 instruction manual