Logitech r400 laser presentation control

the main technical specifications of the Logitech R400 laser presentation control: General : - Wireless technology: 2.4 GHz (wireless range about 15 meters) - Battery type: 2 AAA batteries - Battery life: Up to 20 hours of continuous use - Low battery indicator: Yes Presentation commands: - Slideshow start/stop button - Navigation buttons (forward, back) - Black screen button (to hide the display) - Laser pointer button (to highlight items on screen) - Volume control (for presentations with audio) Compatibility: - Supported operating systems: Windows XP, Windows Vista, Windows 7, Windows 8, Windows 10, Mac OS X 10.5 or later - Supported presentation software: Microsoft PowerPoint, Keynote, Adobe Reader, Prezi and other applications that support presentation commands Additional Features: - Plug-and-play technology: no additional drivers or software required for installation - USB wireless receiver: stores inside the remote control for easy transport - Light indicator: indicates wireless connection and battery status - Ergonomic shape: designed for a comfortable grip and prolonged use Dimensions and weight: - Dimensions: 13.9 cm (length) x 3.3 cm (width) x 2.7 cm (height) - Weight: 57 g (including batteries and USB receiver)