This smoke detector is portable, making it ideal to place anywhere in the home, especially by the bed. In the event of it detecting smoke, it will flash and sound an alarm. If you remove it from its base it converts to a torch, thus helping you to escape any danger. It can also act as a locator if you happen to be overcome by fumes.When the smoke or carbon monoxide alarms go off the handset will sound an alarm and flash giving you an early warning sign and a better chance of escaping. The handset can be used as a torch and emits a sound so it can be located.