Fangrui Product Details 1. 2 In 1 Designwith Unique Dual-head Design, You Can Use This Presentation Remote On A Computer, Compatible With Most Devices, Such As Ipad Computer Laptop. This Presenter Clicker Is Easy To Use, No Need To Download Software, Just Plug And Play. 2. Multifunctional Wireless Presenterthe Slide Clicker Supports Hyperlink, Volume Control, Switch Windows, Full/black Screen, Page Up/down. Powerpoint Remote Is With Bright Red Light That Is Easy To See Against Most Backgrounds (not Recommended For Led/lcd Screens). 3. Elaborate Design Detailsthe Soft Silicone Buttons Design Makes Your Thumb Feel Comfortable. The Bumped-buttons Can Prevent You Pressing Wrong Button. 4. Widely Applicablethe Power Point Clicker Supports Systems: Windows 7/ 8/ 10, Mac Os, Linux, Android; Our Presentation Presenter Supports Software: Powerpoint, Google Slides, Pdf, Ms Word, Excel, Etc. 5. Specification Parameters : 6. 4g Control Distance: 100m 7. Laser Control Distance: >200m