SPECIFICALLY ERGONOMIC DESIGNED FOR LEFT-HANDERS. OPTICAL VERTICAL MOUSE - HEALTHY MOUSE Lefties of the world have to deal with many disadvantages in daily life products. Choosing a comfortable mouse to protect us from daily muscle injury should be easy, but might seem a luxurious wish for most lefties. This ergonomic left handed 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. From the office to home, using the ergo mouse is comfortable and healthy. This Lekvey Left-handed mouse is intersection of class, comfort and functionality for the 21st century. Advanced Ergonomic and Sleek Designed Lefty Mouse: Turn heads with a futuristic design. Made for increased functionality and comfort, this rechargeable ergonomic left handed mouse combines a handshake grip. Rechargeable Left Handed Wireless Mouse: 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. Comfortable, Classy and Easy-access Use: 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. 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 Lekvey Vertical Ergonomic Optical Left Handed Wireless Mouse 1 x 2.4G USB receiver 【 USB Receiver is at the bottom of the mouse】 1 x 78cm Charging cable Kindly Note: This wireless mouse is only for Left Handed.