Features 1、Ergonomic designed, unique curve shape, long time holding will not feel pain, grip full, easy to grasp. 2、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. Specification Condition: 100% Brand New Item Type: Electronic Page Turning Pen Material: ABS + PC Color: As Pictures Shown Battery: 1 x AAA Battery(Not Included) Working Voltage：1.5V Remote Control Technology：2.4G Lighting Range：〉300M Lighting Wavelength: 650nm Lighting Power: 〈1m/ or <5m Cover Control Distance: About 13M(Note: Actual Effective Distance Varies With Environment) Operating System: For Windos 98/Se/Me/2000/XP/Vista/IOS 0S/Linux Compatible Interface：USB1.1、USB2.0 Working Voltage：USB Total Line Power Supply（4.5-5.5V） Weight: Approx. 28g(Not Included Battery) Size: Approx. 105x40x30mm/4.13x1.57x1.18inch Package List 1 x Electronic Page Turning Pen 1 x USB Receiver