UNIVERSAL COMPATIBILITY: optimized to work with Windows, Mac OS, iOS, Android, and leading presentation software including PowerPoint, Keynote, PDF, Google Slides, and Prezi METER OPERATING RANGE: Move and present freely from as far as 20 meters (65 ft.) away. Perfect for medium to large-size rooms DUAL CONNECTIVITY: Connect to your computer via USB receiver or Bluetooth low energy technology. A convenient, built-in dock stores the tiny USB receiver inside the R500 when not in use Runs for 12 months on a single AAA battery. When your battery is low into a 'power-saving' mode disabling the laser to extend battery life LOGITECH PRESENTATION APP: allows you to customize button functions, monitor battery life, and set an on-screen timer for your presentation