Features:* 100% brand new and High quality* 2.4GHz Wireless Connectivity (USB receiver & rechargeable mouse usb cable included)* Built in rechargeable battery* Ergonomic designed to remit and prevent carpal tunnel syndrome.* Optical laser technology for precise control * User convenience with wow-pen's signature， pen-grip comfort.* L/R mouse buttons， 2 thumb buttons， and a clickable scroll wheel * You pick the hand position that best suits you. Plug and play， compatible with Mac and PCSpecifications:* Item type:Ergonomic Optical Mouse* Model:WP012* Resolution: 1600dpi* Button: 4 buttons and 1 wheel (middle button)* Dimension:101X102X72mm* Maximum operating range:10m* Charging cable Length:50.5cm* Color: Black* Material:Plastic* System Requirements:Windows 98/Me/2000/XP/Vista/Win 7/Mac