2.4GHz radio frequency technology can provide this pointer with stable transmission, precise positioning and excellent anti-interference ability. Laser hyperlink, 100M remote control distance, low battery reminder are the functions of this pointer, which has long battery life and convenient to use, it also supports plug and play. This pointer is made of PC, its shell is square-shaped and has smooth angles, frosted surface. Its length is 143mm, its width is 19mm and its height is 16.3mm. It is suitable for meeting, teaching and so on. Item Name: Presentation Pointer Material:PC Batteries: AAA Battery (Not Included) Compatible System: for Win 7, for Win 8, for MAC, for Linux, for Android Switch: Two-pole switch Button: Silicone Buttons Receptor Storage Mode: Magnetic Fully Inserted Size:14.3cmx1.9cmx1.63cm/5.63inx0.75inx0.64in Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. The product is shipped without batteries, and the product uses AAA batteries. Except that the WPS system version does not support the hyperlink function, the rest can be used. Do not use the laser flip pen as a toy for children to play. Do not shoot people's eyes or look directly at the laser during operation. Non-professionals should not disassemble or repair, so as to avoid accidents. Package Includes: 1 X Presentation Pointer 1 X USB Receptor 1 X User Manual