Features:<br> Innovative mini pen-style mouse provides accurate and easy control of the mouse cursor.<br> 2.4GHz wireless connection, up to 10m operation distance.<br> Adjustable 500/1200 DPI optical sensor for smooth movement control.<br> Power saving: if there is no 2.4GHz signal, it will automatically power off.<br> Pen shaped, especially suitable for handwriting input.<br> Real Plug and Play, no extra driver needed.<br> Low voltage alarm function, reminds you to replace battery in time.<br> Designed with a wheel for page turning during PPT presentation.<br> Specifications:<br> Color: Red/Blue/Grey<br> Tracing system: optical<br> Operation frequency: 2.4GHz ~ 2.483GHz<br> Operation distance: up to 10 meters, 360<br> Resolution adjustable: 800/1200DPI<br> Operating current: 15mA<br> System requirement: Windows 2000/XP/Vista/7, Linux, Mac OS, Android OS (with standard USB interface)<br> Battery type: 1 * AAA Battery (not included)<br> Specifications:<br> Wireless Pen Mouse Handwriting Mini Mice<br> Package Included:<br> 1*mouse<br> 1*receiver<br> 1*mount<br> 1*instruction