From the hardware components, there are FM pager or AM pager, control center, digital information machine, monitoring system receiver, monitoring system software, signal intensifier, number picker, external transmitter and so on.

it can be divided into hospital call system, hotel wireless call system, catering wireless call system, factory-specific wireless call system and so on.

technically, there are two categories: AM products and FM products. Wireless doorbells, toys and car remote controls in our lives belong to AM products, while mobile phones, walkie-talkies and pagers belong to FM products. At present, the representative products of FM technology in wireless calling system are talkative cats, and the representative products of AM technology are bell and Kurenai Rin.

there are high-end and low-end prices. The price of Kerui C1999 is in 351 yuan, and the price of transmitter is in 81 yuan, so you need as many positions as you want. A set will cost more than 2111 yuan.