Knorvay Presentation Clicker Green Light Pointer Usb Rechargeable Wireless ?GREEN LIGHT VS RED LIGHT ? Green light is not only 10 times powerful than red light, it?s also vibrant, easier to draw audience?s attentions (Not recommended to use on LED/LCD/TV or for astronomy); RF wireless range up to 330-foot, light control range up to 660ft ?PLUG PLAY MULTIFUNCTIONAL?Powerpoint presentation clicker combines the functions of hyperlink, switch windows, page up, page down, full screen, black screen. Plug Play, no need to install software (For Mac, may requires a simple set-up) ?RECHARGEABLE?360mAh Lithium Battery, clicker for powerpoint presentations requires 2 hour charging time, support using for weeks; High quality material, nice design, slender space saving ?WIDELY COMPATIBLE? Wireless presenter supports systems: Windows, macOS, Linux, Android; Presentation remote supports software: PowerPoint, Google Slides, Keynote, Prezi, PDF, MS Word, ACD See etc ?WHAT YOU GET? 1 years warranty free usb if lost in 1 year; Package included: 1x Presentation Pointer, 1x USB Receiver, 1x Pouch Case, 1x User Manual, 1x User Cable