??COMFORTABLE ERGONOMIC DESIGN?Specifically Ergonomic mouse designed for the right hand, suitable for most people’s palms. your wrist will not be forced parallel to the table, wrist remained in a more natural perpendicular position, helped to relieve the stress on wrist and forearm. once found the best way for the mouse to fit into hand, holding it felt completely natural and much more comfortable.? If you use the vertical mouse for the first time, it will take some time to adapt.? ?? ?RECHARGEABLE WIRELESS MOUSE?Built-in large-capacity rechargeable battery, no longer need to buy batteries. The mouse works while charging. 2.4G wireless connection, no wire hassle. There is on/off switch on the back of mouse, you can control the consumption of battery use. Enters power saving mode after 8 minutes idle, click any button to wake up and back to work, has great battery save feature. ? ?EASY TO USE?Plug n play, no lag, no loss of connectivity. the setup is pretty easy, no driver installation was needed, just fit the receiver into a USB port and use with ease. ( One Nano USB receiver at the bottom of mouse) Vertical mouse Widely compatible with Windows 2000 / XP / Vista / 7 / 8 / 10 / Linux. Fits for desktop, laptop, PC, Chromebook and other devices. Meet all your needs and your daily work easily. ??(NOTE: Both forward and backward buttons are not recognized on Mac) ?? ?MULTIFUNCTION BUTTON?3 DPI 1000/1200/1600 levels, precision is very slick, so you can easily change the cursor speed and adjusts the sensitivity of the mouse; It has 6 multi-function buttons. Added next/previous buttons provide convenience when webpage browsing, designed to increase your work efficiency. the sturdy scroll wheel with rubber spins with the perfect amount of resistance, makes sure that your hand will not slip when scrolling. ??(Note, it is right- handed mouse)