Features: A great choice for teaching, presentation, officemeeting and so on, you can easily point to any corner of the PPT or blackboard. Small and exquisite, portable to put inyour pockets or hold in your hand. 2.4GHz wireless remote control, the effectivedistance can be up to 100m. High sensitivity and 360 all-dimensionalcontrol, can be controlled through walls. No complex installation, easy to use. Specifications: Material: ABS Size: Approx. 139.2 x 18.2 x 19.7mm Color: Black Control Distance: 100m Laser Wavelength: 650mm (Red Ray) Wireless: 2.4GHz Battery: AAA Battery (Battery is notincluded.) Work Voltage: 1.5V Sleep Current: <10uA Suitable: for Windows 7/ Windows 8/ Windows10/ XP/ for OS X IOS/ for Linux/ for Android Functions: Laser, Up & Down Page, Full Screen & Black Screen, Hyperlink, Switch Windows, Adjust Volume Package List: 1 x Wireless Remote Control Laser Pen 1 x User Manual 1 x Package PocketNote: Please do not directly shoot laser into people's eyes, because the laser beam can hurt them.Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering..