Brand new and high quality. The Wireless Presenter, 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 '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. , 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. switch, can extend the battery lifetime. Effective Range : . 30m Battery : 1 x AAA batterier (Not include) 2.4 GHz wireless technology. USB port Output power Less than 0.5mW System Requirements : Windows XP, Windows Vista, Windows 7,Windows 8,,for os,for ios Colour:black+grey Material:ABS Package Contents: 1 x presentation clicker with USB Reciver Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.