OPTICAL VERTICAL MOUSE - HEALTHY MOUSE This ergonomic mouse is full of vitality, innovation, and has many health benefits. By changing the way you use your wrist and arms, you will effectively reduce pain and discomfort. Add rubber oil coating to prevent sweaty fingers from sliding. From the office to gaming, using the optical vertical mouse is comfortable and healthy. The intersection of class, comfort and functionality. A mouse for the 21st century. Comfortable and classy. Tired of using the traditional grip? Take a break from overly-clunky or uncomfortably tiny mice. The ergonomically-designed thumb rests and grips fit the contour of your palm for maximum comfort. Easy-access use. Six buttons give you improved control over your computer's systems. Whether dragging and dropping, selecting large volumes of data, or casually gaming, this mouse provides a low-cost, effective solution for multiple computing needs. Sleek and rechargeable. Turn heads with a futuristic design. Made for increased functionality and comfort, this rechargeable vertical mouse combines a handshake grip. Batteries no longer need to be replaced frequently. Recharge Quick-connect design allows you to switch from wireless to a charging cable connection so you never run out of power. Vertical Mouse Specification： Connection Mode: 2.4G USB Item Weight：95g Item Dimension：5.0 x 3.0 x 2.5 in Sensitivity: 3 DPI modes: 800-1200-1600 Adjustable Compatible Systems: Windows 2000 Windows XP Windows Vista, Windows 7, Windows 8, Windows 10 Linux , Android  (Note: Not compatible with Mac, OS System) Package Contents： 1 x 7Lukcy Vertical Ergonomic Optical Mouse 1 x 2.4G USB receiver 〠USB Receiver is at the bottom of the mouse】 1 x 78cm Charging cable