R400 2.4Ghz USB Wireless Presenter Laser Pointer PPT Remote Control for Powerpoint Presentation Features : 100% brand new and high quality The Wireless Presenter R400, is designed to help you make your point in a meeting. It's got a red laser pointer, is easy to see against most backgrounds and projection surfaces, you can be sure they won't miss the point. Its intuitive slideshow controls help you navigate through your presentation with confidence. Built-in slideshow buttons. Contoured one-touch keys for easy slideshow control. Lightweight, portable, comfortable handheld feeling. Plug and play, no software required, makes it simple to get started. Red laser pointer with LED indicator, is easy to see against most backgrounds and projection surfaces. Storable receiver ,easy to use, simply insert the receiver to USB port and it can be used immediately. Battery-power indicator, make you understand the power's situation. Onoff switch, can extend the battery lifetime. Specifications : Material: Plastic Color : Black Effective Range : Approx. 20m Battery : 2 x AAA batterier (Not include) 2.4 GHz wireless technology. USB port Output power < 0.5mW System Requirements : Windows XP, Windows Vista, or Windows 7 Size: approx. 11.5 x 3.7 x 2.7cm Net Weight: 36g Package included : 1 x Wireless Presenter Remote Control