2pcs Usb Wireless Presenter Powerpoint Clicker

1.2.4GHz wireless presenter pen, with a bright red light for easily seeing most backgrounds and projective surface.2.With button to page up & down, full screen, black screen, convenient for control your slideshow.3.With a USB receiver next to the battery case, plug and play, powered by 1 * AAA battery(not included).4.Approx. 15m / 59in effective wireless remote communicating range, free for you to walk around & interact with your audience.5.Support browsing kinds of Excel, PowerPoint, webpage, Ebooks etc.Ergonomically ultra-slim design & compact size offers you comfortable using feeling.Great assistant for teacher, lecturer, professor, scholar & other presenters, as well as a perfect considerate gift.Radio Frequency: 2.4GHz-2.483GHzPower Supply: 1 * AAA Battery(not included)Effective Control Distance: Approx. 15m / 59inOutput Power: Less than 5mWCurrent: 30mA(Max)Colour:black+greyMaterial:ABSSize:105 x 40 x 30mmPackage Contents:2 x Transmitter2 x USB ReceiverOnly the above package content, other products are not included.Note: Light shooting 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.