Rechargeable Green Presentation ClickerWireless presenter with green light which is good for showing up on variety of backgrounds, bright green light help you to clearly point things out to your audience, much easier to see as opposed to red. The slide clicker built-in 360mAh Lithium Battery which provides weeks of use on only 2hours charge., not having to bother with constantly replacing batteries. Functional Rremote Clicker for presentationsThe presentation pointer for powerpoint presentations combines the features of volume control,page forward/backward, switch windows, full/black screen, hyperlink.Easy to control the volume and slides to step away from the computer while teaching or presenting.