This 2.4 GHz Wireless Remote Red Laser Pointer Presentation Black is small and exquisite, portable and with richer applications. An essential nice assistant of demonstrations or presentations, you can easily point to the PPT or blackboard in any corner of classroom. Making your demonstrations or presentation seem more dynamic and making listeners feel release. This laser pointer is also the best gift for friends and families. Features:2.4GHz wireless presenter pen, with a bright red light for easily seeing most backgrounds and projective surface.With button to page up & down, full screen, black screen, convenient for control your slideshow.With a USB receiver next to the battery case, plug and play.Approx. 10m / 33in effective wireless remote communicating range, free for you to walk around & interact with your audience.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 ideal considerate gift. Specifications:Power Supply: 1 x AAA battery (Free Batteries included)Switch: ButtonOperating System: USB interface and Microsoft Windows 2000 / XP / VistaColor: BlackMaterial: PlasticRadio Frequency: 2.4GHz-2.483GHzOutput Power: 5mWCurrent: 30mA(Max)Item Size: 11 * 4 * 2.5cm / 4.3 * 1.6 * 1inItem Weight: 29g / 1oz Package Content:1 x Wireless Presenter remote control1 x Wireless Receiver1 x User Manual