ASiNG Advanced Digital Laser Multifunctional Presentation Remote LED Display Screen Countdown Alert and Time Showing help to manage presentation time, Voice prompt to remind you unplug the reiver in time without losing. Red Physical Laser Pointer Mode: It keep all the traditional Red Laser Pointer functions, such as PPT Clicker, Air Mouse Function, Multi-Function Keys, and support Page Up, Page Down, Full Screen, Black Screen and Task Switch. Digital Laser Presentation Remote Mode: Using digital laser technology with better visibility and clarity to replace the tranditional LED lights, the color, transparency and size of the digital laser can be adjusted as you like. Spotlighting, Highlighting and Magnification By pointing and pressing the key, you can easy to use it for highlighting and magnifying any subject on screen, it will be firmly grip the audience's attention. Electronic Marking Function Allows you mark on the srceen to underline what you want audiences to focus on, and you also can erase all marks. Smart Timer and Anti-Lost Function Countdown alert and time showing help to manage your presentation time perfectly, voice prompt to remind you unplug the receiver in time without losing. U-Disk Function Built in 128M/32GB Storage Memory in USB receiver to store your presentation files(PPT, Video, Images...), make your presentation easy and convenient. Compatibility: Support most office presentation software(PowerPoint, Keynote, PDF, Google Slides, Prezi and MS Word/Excel) on Projector/TV/LED/Computer screens, Compatible with Windows XP/Vista/2003/7/8/10, Mac OS. Package listing: 1 x Digital Laser Presentation Remote 1 x USB Receiver with128M Storage Memory 1 x Carry Bag 1 x User Manual 1 x USB Cable