[Long Battery Life] Presenter remote just uses two AAA batteries(included), which is convenient because then you don't have to buy odd size batteries. Power point remote clicker is sturdy enough to throw in a briefcase or bag. Tips: Slide clicker has an on/off switch on the side to save the battery when not in use. [Widely Compatible] Wireless presenter with laser pointer works with desktop and laptop computers. Presentation remote supports systems: Windows 2003, XP, Vista, 7, 8, 10, Mac OS, Linux. Wireless presenter remote supports softwares: Google Slides, MS Word, Excel, PowerPoint/PPT, etc. [Plug and Play] No installation needed, no assembly or hard instructions to follow. Just plug and play. You simply plug the USB receiver into your computer and start using the laser pointer for presentations. The USB dongle slips into a slot on the PPT remote control handle when not in use. [Wonderful Ergonomically] Wireless presentation clicker for PowerPoint presentations has a amazing ergonomic design that makes you soft touch and comfortable to grip ,and presentation pointers' buttons are big enough that you won't accidentally click the wrong one. [Presentation Clicker with Laser Pointer] PowerPoint clicker controls range:98FT/30M, laser pointer range: 328FT/100M. Clicker for laptop presentations allows you to circulate through the room instead of being tied by the laptop and projector screen to make emphasis on important points.