Transmitter Features:<br> Technology: Radio Frequency<br> Frequency: 2.4GHz<br> Light Color: Red<br> Wireless Cursor Control Distance: 50FT<br> Material:Plastic<br> Colour: Black<br> PPT Remote Control Distance: 100-165FT<br> Light Control Distance: 330ft<br> Max Output: Less than 5mW<br> Working Voltage: 1.5V<br> Sleep Current less than10uA<br> Dimension: 5.3x1.6x0.9 inch<br> Receiver Features:<br> Operation System: XP, Windows 7/8, OS, Linux, Android<br> USB Version: USB 1.1, compatible with USB2.0, USB 3.0<br> Working Voltage: 5V DC<br> About this item<br> Air Mouse Presentation Clicker Clicker for powerpoint presentations combines the function of air mouse, with wireless cursor control button and left/ right mouse button, which makes it like a true mouse. With it in your hand, you can be totally free from the constraint of keyboard and make your presentation more efficient<br> Package Contents:<br> 1 x Wireless Presenter<br> If the appearance of the buttons is different, it has no effect on the product<br> Only the above package content, other products are not included.<br> Note: Light reflection 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.