This is a new generation of vertical mouse, comfortable grip, suitable for office, games, etc., rechargeable mouse, no need to replace the battery, support ergonomic design. 7D wireless mouse 2.4GHz gaming mouse ergonomic design vertical mouse 2400DPI. Features: 1. 2.4GHz wireless connection, including USB receiver and rechargeable mouse USB cable. 2. Built-in rechargeable battery (600MA). You do not need to buy an AA battery. It is convenient for you. 3. Ergonomically designed to relieve and prevent carpal tunnel syndrome. Using it to keep you healthy. 4. Optical laser technology for precise control. It is better than other mouse in the market. 5. Easy to use, comfortable to hold, prevent the hand illness. 6. L / R mouse button, 2 thumb buttons and clickable wheel, 2 dpi button (dpi + / dpi - ). 7. You can choose the position that best suits your hand. Plug and play, compatible with for Mac. Specification: Project Type: Ergonomic optical mouse Resolution: 800 dpi; 1600 dpi; 2400 dpi. Button: 4 buttons and 1 wheel (middle button) and 2 dpi (adjustable) Maximum Working Range: Approx. 10 meters/32.8ft Charging Line Length: Approx. 80 cm/31.4inch Color: Black + Red Material: ABS Button Life: 5 million times System Requirements: For Windows 98/Me/2000/XP/Vista/Win 7/Win8/Win10 or the latest version Package List: 1 x Mouse 1 x USB Charging Cable 1 x User Manual 1 x Receiver Note: 1. This mouse does not require an AA battery. There is a battery inside the mouse! You can use the USB cable to charge!!!! Now you don't have to worry about buying a battery again! 2. This wireless mouse's vertical ergonomics help you get rid of fatigue after using your wireless mouse for a long time. More concerned about your health. Avoid carpal tunnel syndrome.