1、Ergonomic designed, unique curve shape, long time holding will not feel pain, grip full, easy to grasp. 2、4G wireless presentation control, overall slide control function, including forward, back, start, pause and black screen functions. 3、Good touching feel, comfortable to hold, small enough to hold easily and unobtrusive. 4、Free control of presentations files up to 15 metres away, with integrated indicator to help the viewer focusing on key areas of the slide. 5、Compatible system for Windows 10 2000/XP/Vista/IOS OS/Linux. 1 x Electronic Page Turning Pen1 x USB Receiver Condition: 100% Brand NewItem Type: Electronic Page Turning PenMaterial: ABS + PCColor: As Pictures ShownBattery: 1 x AAA Battery(Not Included)Working Voltage： 1.5VRemote Control Technology： 2.4GLighting Range：〉300MLighting Wavelength: 650nmLighting Power: 〈1m/ or <5m CoverControl Distance: About 13M(Note: Actual Effective Distance Varies With Environment)Operating System: For Windos 98/Se/Me/2000/XP/Vista/IOS 0S/LinuxCompatible Interface：USB 1. 1、USB 2.0Working Voltage：USB Total Line Power Supply（ 4.5- 5.5V）Weight: Approx. 28g(Not Included Battery)Size: Approx. 105x40x30mm/ 4.13x 1.57x 1.18inch