Feature 1[Ergonomic Design] Unique curved design, the wireless presenter remote conforms to ergonomics, so it will not be sore when held for a long time. 2[Wireless Connection] Using 2.4Ghz wireless technology, the presentation remote pen can remotely control the demonstration at about 10 meters. 3[Multi Functions] Comprehensive slide presentation functions, including forward, return, pause, start and black screen functions 4[Wide Application] This wireless presenter remote is a practical tool for teacher and worker to present powerpoint for speech, meeting or class. 5[Widely Compatible] This presentation clicker is suitable for Win 98,for Win se, for Win me, for Win 2000, for vista, for OS X, for Linux.SpecificationItem Type: Presentation ClickerMaterial: PlasticControl Distance: Up to 10m(Approx. 10m / 10.9ys)Adapter Battery: 1 AAA Battery (Delivery Without Battery)Compatible Interface: USB 1.0 / USB 2.0Uses: Conferences, Lectures, etc.Compatible System: For Win 98,for Win se, for Win me, for Win 2000, for Win xp, for vista, for OS X, for Linux .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x PresentationClicker1 x Wireless Receiver1 x User Manual