The item is a portable and multifunctional wireless presenter, utilizing 2.4GHz wireless transmission technology, allowing you to freely control your PowerPoint up to 20 meters away. The built-in pointer can highlight key points, and it supports page up and down functions. Therefore, it's truly a wonderful wireless presenter for teaching or presentation use. Feature: - Color: Black. - Material: ABS. - Size: Approx. 11.2 x 3.5 cm / 4.4 x 1.4 inches. - Standby current: less than 30uA. - Weight: 38g. - USB Receiver Operating System: Windows, Mac. - Compatible Interfaces: USB 3.0, USB 2.0, USB 1.1. - Compatible System: Windows, OS X, Linux, Android. - Working Voltage: 4.5-5.5V (USB bus-powered). - Function: Red, page up and down, full screen, black screen. - Compatible with Windows, OS X, Linux, Android systems, can also be used for website operation. - Embedded design. The USB receiver can be embedded in the presenter, making it more portable and convenient. - The wireless range is up to 20 meters, and the built-in pointer helps highlight key points. - Applicable for teaching, business conferences, presentations, and so on. Packing List: 1 x Wireless Presenter (Black)