The next time you spend a late night at Denny's plugging away at an investor presentation, you won't have to worry about leaving your laptop unattended while you go outside to take a breather. The Defcon 3 antitheft device will let you know if someone tries to nab your goods. Equipped with a motion sensor that can be set to high or low sensitivity levels, the Defcon 3 will set off an alarm if someone tampers with it. It only weighs 2.9 ounces and is controlled by a battery-powered remote control that works from up to 40 feet away. You can set the alarm volume to high or low and choose between six different sounds. The Defcon 3 also doubles as a personal panic alarm.