To make your presentation flow continuously the powers enter integreates the slide up/down functions with a laser pointer on a remote hand held device using a wireless technology - The powers enter's attractive and compact design enables mobility of up to 15 meters from the laptop/PC while still maintaining a full navigational control of your presentations - The powers enter does not require any software and PC programming and take just a few seconds to install and use - Plug and play function. No PC programming and S/W - Working on any computer. On any computer using a USB port - Remote control range over 15m with a very low power. Eliminates LOS problems encountered with IR systems - Transmitter identification. Use thousands of ID number to avoid multi-user interferences