Ergonomic Vertical MouseIt is important to equip yourself with a vertical mouse of the right size, which will make it easy for you to get used to using a vertical mouse and provide significantly more comfort for the hand muscles. Everyone has different hand sizes and there is no one size fits all. Don't worry, you can find your right size of vertical mouse with Ergonomic Series. New Ergonomic Grip Gesture-57Just hold the vertical mouse at a scientific angle of 57 degrees, rest your hand on the mouse and keep your forearm in a natural position. Compared to traditional mouse shapes, it reduces arm discomfort and hand stiffness. Plug and Play, Stable 2.4G Wireless2.4G RF wireless connection with USB Nano receiver, with 10m/30ft effective distance, just plug and play (please note that due to the portable design, the USB Nano receiver is stored in the battery compartment, find the USB receiver in the battery compartment) 3 Adjustable DPI1000-1200(default)-1600, 3 DPI levels that can be easily switched according to your daily working needs with the DPI button behind the scroll wheel. And with a sensitive optical engine, which provides smooth and accurate tracking on a wide range of surfaces. Wide CompatibilityCompatible with Windows 7, 8, 10 operating systems. Suitable for various devices, laptop, PC computer, notebook, Macbook(limited support for Mac, the side buttons are not available for Mac) (Compared to traditional mice, with unique ergonomic vertical design, it may take a few days to get used to using it)