Features: 1.Multi Purpose: The presentation function of presentation clicker includes Page up/down, slide show and blank screen, it is a multifunctional tool. 2.Strong Practicality: Electronic pointer is a perfect combination of wireless mouse and wireless presenter, very practical. 3.Easy to Use: Wireless presenter remote can easily control multimedia through the following functions, volume control, playback and pause, etc. 4.Remote Control Distance: Note with highlight pen, no need to drive, remote control distance 15?20m, 2.4Ghz RF technology, strong anti interference effect. 5.Compact Structure: PPT page turning pen is small and light, with a compact structure design that does not take up too much space. specification:IteItem Type: Remote Control Pen Material:Plastic Product Size: Approx. 14cm / 5.5in Approx. 4cm / 1.6in Approx. 3cm / 1.2in Net Weight: 68g Remote Control Distance: Approx. 15-20m / 5.9-7.9in Wireless Control Technology: 2.4G Adapter Battery: 2 x AAA Batteries (Delivered Without Batteries) Compatible System: For Windows, for OS X , for Linux, for Android PackageList:1 x RemoteControlPen 1 x Receiver 1 x User Manual