This Wireless Vertical Mouse adopts 2.4G wireless technology which ensures stable connection and offers 3 DPI levels for choice --- 800, 1600, 2400. What's more, with vertical design, it relieves wrist fatigue to some extent. - Feature:2.4G Wireless Technology - It ensures the stable connection and free you from the twisting cables.3 Adjustable DPI Levels - There are 3 DPI levels --- 800, 1600, 2400. Free to switch. It offers you a pleasantsensation of higher speed, less delay and more correct location. Ergonomic Vertical Design - Compared with traditional mouse, the vertical design relieves the fatigue of your wrist, and offers you comfortable feeling for touch. - Plug and play - No drivers required, just plug USB receiver into USB port of the device, easy to use. - Long Working Time - With built-in large-capacity battery, you can use it for a long time. And it is rechargeable, no need to change battery repeatedly. - Specification:Color: Black, Grey, Pink, White (Optional)Button: Left, Right, Scroll wheel, Forward, Backward, DPI buttons - DPI level: 800/ 1600/ 2400Battery capacity: 1000mAhAuto sleep mode: Support - Supporting system: Compatible with Mac OS/ Windows XP/ Win 7/ Win8/ 10Material: ABSPackage size: 103* 89 * 69mm/ 4.05* 3.5* 2.72in - Package weight: Appro. 150g/ 5.29oz - Packing list:1 * Wireless Vertical Mouse1 * Charging cable1 * USB receiver