Do you know ppt remote control with laser pointer function？

The wireless laser remote control pen is composed of a laser pen with wireless transmitting function and a receiver. A radio frequency transmitting circuit capable of transmitting a wireless signal is installed in the laser pen, and a signal receiving circuit for receiving the radio frequency signal transmitted by the laser pen is installed in the receiver. When the user presses the button on the laser pen to control the up and down of the computer page, the RF circuit in the Laser pointer can send signals in the form of RF through the antenna. After receiving the signal, the RF signal receiving circuit in the receiver processes the signal, transmits it to the computer motherboard through the USB plug on the receiver and the USB interface on the computer, and operates the computer to turn pages up and down. The laser remote control voice pen is composed of a laser remote control voice pen and a receiver. The laser remote control voice pen has a built-in remote control transmitter and laser pen, and has three function keys: laser key, page up key and page down key. Remote control transmitter is one of the main signal settings of remote control computer; Page key is a shortcut button to control the explanation content; The seemingly ordinary laser button is a powerful weapon to highlight the focus of the speech and guide the audience's attention.