Computer Accessory Sets features: VIBOTON PP900 2.4GHz Multimedia Presentation Remote PowerPoint Clicker Handheld Controller Flip Pen with USB Receiver, Control Distance: 25m(Red) Color: we send based on the color or size of the main image of the product page. Quantity：we send based on quantity on title, if there is no quantity in the title, we send based on description. 1. Pointer uses standard USB port and works with IBM PC keyboard or mouse can be used while using Pointer. 2. Pointer is equipped with high quality laser pointer. 3. Make your presentation flow continuously, and you do not need to make unneccessary trips back and forth or require a personal assisstance. 4. The remote controller allows you to remotely move POWERPOINT frames forward or backward. 5. Pointer use RF signal to control POWERPOINT frame. 6. Interface: USB 1.1 or USB 2.0 (plug and play with no need for software drivers). 7. Operation system: Windows98/2000/XP/VISTA/WIN20/Linux/Mac OS. 8. Note: To avoid possible eye damage, never point the presenter at people especially their faces, or look directly into the presenter's laser beam. Be sure to read the user's manual carefully before use.