Features:100% brand new and high quality.Rechargeable wireless type. Built-in rechargeable lithium-ion battery,very convenient to use, dispense with frequent battery replacement trouble, comes with a recharging usb cable.System requirement: Windows 2000/XP/Vista/7, Linux, M-a-c OS,above.Fashionable Pink Girl design: Slim design for sleek look and easy to useErgonomically designed, optical tracking technology, working on many different surfaces and ideal usage for home, office or game.Suitable for PC Laptop Desktop Computer With USB port.Specifications:Material: PlasticColor: PinkSize: approx.: 125x67x39mmDPI: 1600 dpi.Power supply: Rechargeable lithium batteryPackage includes:1 x 2.4G Wireless Mouse1 x USB receiver(color random)1 x USB cable