In excellent condition. Includes wireless mouse and USB dongle Pair your mouse with 3 computers and seamlessly switch between them 3 illuminated numbers always let you know to which device you're connected Hyper-fast scroll wheel Designed to endure with buttons built to withstand up to 10 million clicks Large-sized, right-hand design fits comfortably in your palm, the rubber surface making it extra soft to the touch 24 months of power on a single AA battery Bluetooth connectivity Compatible with Windows & Mac