With a unique KeyLock technology that prevents accidental button press during use, this laser presenter works using 2.4Ghz wireless technology - it can work from upto 50 feet away. It comes with a simple button layout and has a dedicated button that pauses and displays a blank screen during an on-going presentation - useful during discussions and breaks. It uses two AAA batteries for power and works with PC/MAC via the bundled mini USB receiver. `1,999
