This wireless mouse is trying to breaknormal procedure. It is entirely different from traditional mouse, as you cansee, it is vertical. It is devoted into keep your hand natural and comfortablefor working hours, so that to prevent from carpal tunnel syndrome. With excellentstability and non-delay technology, brings you a special and healthy experienceof mouse using.Features:Vertical Ergonomic Design: Ease wrist painwhich is caused by long-time mouse using. Your hand with the arm keeps straightand placed naturally when you use a vertical mouse.High precision control: non-delaytechnology allows high sensitivity, provides up 800/ 1200/ 1600 3 levels ofadjustable DPI, you can make it more precise for things, like color correctingand photo editing, or faster for browsing.Smooth and natural feeling: made ofmaterial feels like human skin, gives users the most comfortable hands feelingand avoids from sweat and slipping.Long Time Use: power supply by 2pcs AAAbattery, low power consumption, ON/OFF button for easy switch.2.4GHz Wireless Control: no messy wire, wirelesstransmission can operate up to 10 meters.Wide Compatibility: plug and play, fit wellwith most desktops or laptops with a USB port for connection.Compact and portable: light, simple andmodern design, easy to carry, suitable for game, home, office, net bar, etc.Specification:Optional Color: Black, WhiteMaterial: ABSType: Vertical Optical MouseTracking Method: OpticalCompatible for: PC/ LaptopSupport OS: Windows 98/ 2000/ ME/ XP/Vista/ Win7/ Win 10/ for MAC OSWireless Frequency: 2.4GHzWireless Distance: 10mAdjustable DPI: 800/ 1200/ 1600Button: 6 (Left/ Right/ Scroll Wheel/ Forward/ Backward/ DPI Switch)Power Supply: 2 * AAA battery (NOTIncluded.)Package Size: Approx. 13 x 7.5 x 9cm / 5.1x 3.0 x 3.5inPackage Weight: 123gPackage list:1 * Vertical Mouse1 * USB Receiver1 * User Manual