Features 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、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 /u0026 interact with your audience. 5、Support browsing kinds of Excel, PowerPoint, webpage, Ebooks etc. 6、With a USB receiver next to the battery case play, powered by 1 * AAA battery(not included). 7、Approx 15m / 59in effective wireless remote communicating range, free for you to walk around /u0026 interact with your audience. 8、Support browsing kinds of Excel, PowerPoint, webpage, Ebooks etc. Ergonomically ultra-slim design /u0026 compact size offers you comfortable using feeling. 9、♥With button to page up /u0026 down, full screen, black screen, convenient for control your slideshow. 10、♥With a USB receiver next to the battery case, plug and play, powered by 1 * AAA battery(not included). 11、♥2.4GHz wireless presenter pen, with a bright red light for easily seeing most backgrounds and projective surface. 12、♥Approx 15m / 59in effective wireless remote communicating range, free for you to walk around /u0026 interact with your audience. 13、♥Support browsing kinds of Excel, PowerPoint, webpage, Ebooks etc. Great assistant for teacher, lecturer, professor, scholar /u0026 other presenters, as well as a ideal considerate gift. 14、With button to page up /u0026 down, full screen, black screen, convenient for control your slideshow. With a USB receiver next to the battery case, plug and play, powered by 1 * AAA battery(not included). 15、Great assistant for teacher, lecturer, professor, scholar /u0026 other presenters, as well as a ideal considerate gift. 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. With a USB receiver next to the battery case, plug and play, powered by 1 * AAA battery(not included). Approx. 15m / 59in 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: --Transmitter Material: Plastic Radio Frequency: 2.4GHz-2.483GHz Power Supply: 1 * AAA Battery(not included) Effective Control Distance: Approx. 15m / 59in Output Power: <5mW Current: 30mA(Max) Item Size: 11 * 4 * 2.5cm / 4.3 * 1.6 * 1in Item Weight: 29g / 1oz --Receiver Radio Frequency: 2.4GHz-2.483GHz Interface: USB 1.1/2.0 Package List: 1 * Transmitter 1 * USB Receiver(Built-in) Package List 1 * Transmitter 1 * USB Receiver(Built-in)