Currently, there are many types of laser pointers on the market. Laser pointers are used in many occasions. Laser pointers are easy to carry and affordable. However, most laser pointers can only achieve presentation functions and cannot change the content in the slides. When presenting carefully prepared PPT slides, Word documents, web pages and pictures, you need to stay at the computer or find an assistant to change the pages intermittently, which causes great inconvenience to the user and is not smooth. Smooth introduction. So a wireless laser pointer with remote control function was produced.
The first generation of wireless laser pointers mainly used infrared control technology. Many remote control devices also use this technology. The biggest disadvantage of infrared remote control is that it has strong directionality. When giving a speech, you have to deliberately press the direction buttons of the receiver. This kind of exaggerated action will make the people present uncomfortable, and the speaker himself will also feel uncomfortable. And it is prone to remote control failure.
The second-generation wireless Laser pointer uses RF radio frequency remote control technology. The biggest feature of this technology is low power and environmental protection, and secondly, it is non-directional. As long as it is within its effective working distance, it can be remotely controlled at any time, any place, and any posture. The convenience and practicality of the computer are greatly enhanced. It only needs a USB interface, a receiver, and a send button. When you connect the receiver to the USB interface and press the transmit button, you can use it easily without any problems.