Specification: Condition: Brand New switch: button Colour: Black Light color: red Control distance: 10M Lamp type: beam lamp 5MW Dimensions (approx.): 10.5 x 3.9 x 2.6 cm Power: 1 x AAA battery (not included) Function: page up and down function Operating system: USB interface for Microsoft Windows 2000 / XP / Vista Support MS Word, excel, PowerPoint, ACD See, website, etc., with page up and down function feature: This 2.4GHz wireless remote control pointer is small and exquisite, easy to carry and has more applications. An essential good assistant for presentations or presentations, you can easily point to a PPT or blackboard in any corner of the classroom. Make your presentation or presentation look more dynamic and make your audience feel relaxed. This pointer is also a great gift for family and friends. No hassle to set up, just plug into your computer's USB port. The USB receiver is plug and play - no drivers required. Power saving, lightweight and fits in a pocket or handbag. This high quality laser pointer uses the latest red laser optics and microelectronics technology. Package Included: 1*Wireless Presenter (battery not included) 1*USB wireless receiver 1*User Manual notes: Demonstrations of other accessories in the pictures are not included. Actual colors may vary slightly due to different monitors. Due to manual measurement, please allow 1-5mm deviation