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 with the wireless presenter 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 Extended battery life: 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 clicker button functions, monitor battery life, and set an on-screen timer for your presentation This pre-owned or refurbished product has been professionally inspected and tested to work and look like new. How a product becomes part of Amazon Renewed, your destination for pre-owned, refurbished products: A customer buys a new product and returns it or trades it in for a newer or different model. That product is inspected and tested to work and look like new by Amazon-qualified suppliers. Then, the product is sold as an Amazon Renewed product on Amazon. If not satisfied with the purchase, renewed products are eligible for replacement or refund under the Amazon Renewed Guarantee.