The Surface Mobile Mouse connects easily and wirelessly to your device. A separate USB receiver is not required. With its flat, symmetrical design, it fits comfortably in the hands of both left- and right-handed users. The compact design and impressive battery life of up to one year make it ideal for on-the-go use. BlueTrack technology ensures precise tracking on virtually any surface. With up to six months of battery life, you can save both the environment and your budget. Enjoy plenty of freedom of movement without the hassle of tangled cables: this input device establishes a wireless direct connection to your Bluetooth-enabled computer. Unlike other wireless devices, no USB receiver is needed, allowing you to keep your USB ports free for other peripherals.