[Plug & Play Presentation Clicker]: Presenter remote supports functions: hyperlink, volume control, switch , full/black screen, page up/down; Clicker remote is plug and play, no software to install, super easy to use. [Bright Red Light & Long Control Range]: Powerpoint remote is with bright red light that is easy to see against most backgrounds; Supported control range is long enough to freely move around the rooms. [WIDELY APPLICABLE]: Presentation clicker supported systems: for 2003/XP/Vista/7/8/10, for OS, for Linux, for Android; Wireless presenter remote supported software: PowerPoint, Slides, Keynote, Prezi, PDF, MS Word, ACD See etc. Package:Yes Model Number:2.4G Wireless PowerPoint Pen Wireless Communication: Use:Computer,Universal The product appearance and printed words depending on the batch, but this does not affect use. Colour:Gray Material:plastic cement Package Contents: 2 x remote control pen 2 x charging cable 2 x Chinese and English instruction manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.