A Bluetooth mouse is a must have for Bluetooth-enabled laptop users on the go. Many laptops have built in wifi, but even if yours doesn't, you can simply connect a Bluetooth adapter. A compact and cheap Bluetooth mouse will help you get more done than if you just try to work with your laptop's built in trackpad. Since they are wireless, these convenient devices are easy to take with you wherever you go. Most run on one or two batteries, but the best Bluetooth mouse can be connected to your computer via a USB cable to recharge for hours of uninterrupted use.