Feature: 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 \u0026 down, full screen, black screen, convenient for control your slideshow. 3. Built-in hidden USB receiver design, plug and play. 4. Approx. 15m / 59in effective wireless remote communicating range, free for you to walk around \u0026 interact with your audience. 5. Support kinds of Excel, PowerPoint, webpage, Ebooks browsing etc. 6. With button to page up \u0026 down, full screen, black screen, convenient for control your slideshow. Support kinds of Excel, PowerPoint, webpage, Ebooks browsing etc. 7. Built-in hidden USB receiver design and play. 8. Approx 15m / 59in effective wireless remote communicating range, free for you to walk around \u0026 interact with your audience. 9. Eco-friendly material, ergonomically fluent design \u0026 compact size offers you comfortable using feeling. 10. Built-in hidden USB receiver design, plug and play. Approx 15m / 59in effective wireless remote communicating range, free for you to walk around \u0026 interact with your audience. 11. Support kinds of Excel, PowerPoint, webpage, Ebooks browsing etc. Eco-friendly material, ergonomically fluent design \u0026 compact size offers you comfortable using feeling. 12. Great assistant for teacher, lecturer, professor, scholar \u0026 other presenters, as well as a ideal considerate gift. 13. With button to page up \u0026 down, full screen, black screen, convenient for control your slideshow. Built-in hidden USB receiver design, plug and play. 14. Approx. 15m / 59in effective wireless remote communicating range, free for you to walk around \u0026 interact with your audience. Support kinds of Excel, PowerPoint, webpage, Ebooks browsing etc. Specification: 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. Built-in hidden USB receiver design, plug and play. Approx. 15m / 59in effective wireless remote communicating range, free for you to walk around & interact with your audience. Support kinds of Excel, PowerPoint, webpage, Ebooks browsing etc. Eco-friendly material, ergonomically fluent 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: --Transmitter Material: Plastic Radio Frequency: 2.4GHz-2.483GHz Power Supply: 2 * AAA Battery(not included) Effective Control Distance: Approx. 15m / 59in Output Power: