Bright Red Lights - Demo remote control comes with bright light, which is easy to see in most backgrounds (not recommended for LED and LCD screens), highlights key points in the slideshow, so that you can interact with the audience, let them pay attention to PPT. Hyperlink Support - This slideshow selector supports full screen, black screen, page up, page down, and it also supports hyperlinks, click the button multifunction button to select hyperlink, double click button to enter hyperlink, long press multifunction button to switch window Anti-Lost USB Receiver - Wireless presentation pointers have a mini magnetic USB receiver stored in the tail of the wireless transmitter, and it is secured in place by a magnetic system. 100m long control range - It adopts 2.4G wireless technology and supports 360 free operation. Its automatic frequency modulation technology can effectively avoid interference from other wifi, bluetooth and other signals, and ensure 98 feet remote control distance. Ideal for large conference rooms. Wide Compatibility - PL1 Presentation Pointer has been optimized for Windows 7/8/10, Mac OS, Linux, Android. It is compatible with Microsoft Word, Excel, PowerPoint, ACD See, website, iWork (keynote, numbering and page) Google Slides. Product Color: 1 Fan The R1 laptop cooling pad is dedicated by the excellent product design team of. The fans are powerful yet ultra quiet, giving you the most comfort while working or playing. Compared with your laptop, this cooling pad is not expensive, but it keeps your laptop from overheating while working, which protects your laptop and saves you money. These are parts of the features -Fit laptop ranged from 14 to 17 inches -Metal mesh surface - Fan quantity and size: one and 140 * 140 * 15mm each fan -Weight: 520g -Working current: 0.5A -Power capacity: 2.5 W -Wired length: 400 mm - Non-adjustable stable support - 1 year warranty