This 2.4GHz Wireless Presenter with Laser Pointer provides all the essential functionality you need, enabling you to focus on giving the ideal presentation without having to focus on how to use the presenter. The receiver is housed inside the storage slot at the back of the presenter so you will never be left without it. Furthermore to avoid you leaving the batteries on by mistake and turning up to a meeting with a presenter with no power, this device automatically turns itself off when you put the receiver into the storage slot and automatically turns itself on when you take it out – what could be simpler!