PORTABLE PRESENTER REMOTE- Finger ring design is practical, perfect fix your hand and no misplace your presenter clicker anymore.PLUG and PLAY- No need to install software, just plug into the USB, presenter For PowerPoint support page up, page down, black screen, full screen.RIGHT LIGHT and LONG CONTROL RANGE- Bright red light that is easy to see against most backgrounds For Powerpoint remote control range is 98 FT, Light Distance is 328FT,so you can free to move around the room and interact with your audience.WIRELESS PRESENTER SUPPORT- FOR Windows 2003 or XP or Vista or 7 or 8 or 10, FOR OS, FOR Linux, FOR Android Supported software: For PowerPoint, FOR Google Slides, FOR (Keynote and Numbers and ), FOR Prezi, FOR Word, Excel, ACD See, Website, etc.RECHARGEABLE PRESENTER CLICKER: Built-in 120MAH battery, with 1 hour fast charging time, support half month using, support sleep function to save energy.Light Color: RedRadio frequency:2.4GHzLight Class: 3RLight output power:Less than 5MWWorking Voltage: 1.5VBuilt-in 120mAh Lithium battery- by USB cableLight Distance: Up to 100m (328ft)Remote Control Range: Up to 30m (98ft)Colour:blackMaterial:soft plasticSize:43 x 34mmPackage Contents:1 x Wireless Presenter Remote Control1 x Wireless Receiver1 x USB Charging Cable1 x Pouch CaseOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is 1-3cm.