An Apple MacBook is a sleek and stylish laptop. It’s hard not to look cool carrying one around. That cool factor also makes them attractive to thieves.

A simple solution is to keep an eye on your MacBook. But you can’t do that every minute of every day. A cable lock will help you lock down your laptop. But those are a pain to use at hotspots like cafes and airports. So, is there another way to scare off criminals?

That’s where iAlertU comes in handy. It’s like a car alarm for your laptop. It works with your Apple remote. Just hold the Menu button until you hear a single beep. Your Mac will display the message Protected by iAlertU. To deactivate it, hold the Menu button until you hear two beeps.

While activated, the alarm can be set off several ways. If anyone touches the keyboard or trackpad, the alarm will sound. If anyone closes the screen, the alarm will sound. iAlertU also uses the MacBook’s built-in Sudden Motion Sensor. If someone moves the laptop, you’ll know about it.

The alarm is very loud. In fact, it forces your speakers to their loudest volume. It can’t be muted or turned off. You can set the length of the alarm. It will stay on between 10 seconds and two minutes. The screen will also flash while the alarm sounds.