Description This wireless mouse vertical ergonomic design for you, help you get rid of tiredness after long use of the wireless mouse. Care more about your health. Avoid carpal tunnel syndrome. With USB port and charging cable, no need to change battery. Features: Built in rechargeable battery(600MA). Optical lasetechnology for precise control. User convenience with pen-grip comfort. Ergonomic designed to remit and prevent carpal tunnel syndrome. L/R mouse buttons, 2 thumb buttons, and a clickable scroll wheel , dpi button. 2.4GHZWireless Connectivity (USB receiver & rechargeable mouse usb cable included). You pick the hand position that best suits you. Plug and play, compatible with MACand PC. Specifications: Item type: Ergonomic Optical Mouse Resolution: 800dpi, 1600dpi, 2400dpi Button: 6buttons and 1 wheel (middle button)and dpi(adjustable) Maximum operating range: 10m Material: ABS Systemrequirements:Windows98/Me/2000/XP/Vista/Win 7/Win8/ win10or latest. Item weight:Approx.140g/5oz (Including the charging cable and USB receiver weight) Item size: Approx.113*80*620mm/4.3*3*2.4in Package size:Approx.118*88*76mm/4.6*3.4*2.4in Package weight:Approx.168g/6oz (Including the weight of the packaging box) Charging cable Length:Approx.700mm Notice:This mouse dont need to use AA battery now.it have battery inside the mouse!you just used USB cable charging! Package includes: 1 x Mouse 1 x USB Receiver 1 x USB Charging Cable 1 x English User Manuals