Note: The color of the product we ship is the color in the first picture, and the specification and quantity are shipped according to the quantity and specification described in the title. If you need to change the color or style, you need to contact us within 12 hours after placing the order. Our product description: Doosl 2.4GHz Wireless Powerpoint Clicker Presentation Pointer Presenter Remote Control PenProduct Features: Lightweight and easy carry Control Distance: 100m Operation System: for Windows 2003, XP, Vista, Windows 7 or 8, for Mac OS, for Linux Warning: Be warned that 2.4GHz pointers are not toys they should never under any circumstances be directed into people's eyes or at passing aircraft.The pointer is not a toy and should not to be used by anyone under 21.It is illegal to direct the beam at any flying objects, moving vehicles and any public or private structures.A pointer should not be directed at people or animalsA pointer can be dangerous if not used properly. Package Included: 1 x Doosl Presenter 1 x USB Receiver 1 x User Manual Note: Because the model and display effect of the monitor may be different, there may be slight differences in color, and the size is manually measured, there may be an error of 1-2cm, please understand.