The new MX Anywhere 2 Wireless Mobile Mouse enhances the way you work as well as where you can work. It features the advanced Darkfield Laser Sensor that tracks on any surface, including glass. It is small enough to slip into a bag and its rubber surface makes it comfortable for prolonged use. The sleek design is compatible with Windows and Mac with a Pico Unifying receiver as well as Bluetooth Smart wireless technology. You can pair up to three computers and switch easily between them with the touch of a button. One minute of charge gives you an hour of usage and a full charge will last up to two months.