Transmission distance: 1. Wired callers are relatively good; Reason: The length of the line determines how far it can transmit; 2. Wireless pagers are better because they use advanced technology that can achieve stable signal transmission over long distances, typically up to 1500 meters in open spaces;

Installation convenience: 1. The installation of wired call devices is relatively complicated. Reason: Construction wiring needs to be carried out before decoration, which is time-consuming and cumbersome; The wireless pager is relatively simple, for the following reasons: simply paste and fix the pager to use, easy to operate, convenient and feasible;

Expenditure cost: 1. The cost of wired calling devices is relatively high. Reason: In addition to the cost of calling device products, there will also be a large amount of consumables expenses (such as wires, screws, etc.), labor costs incurred during installation and construction, time-consuming, labor-intensive, and high monetary investment; The cost of wireless calling devices is relatively low, for the following reasons: low product price, low investment required for engineering projects, and no need for a large amount of labor or extra benefits. The operation is simple, economical, and deeply loved by customers;

The fourth fault repair: 1. Wired call devices are relatively complicated. Reason: If there is a fault in the line that causes the call device to malfunction, it is easy to cause the entire line to be paralyzed. At the same time, it faces many problems such as difficult troubleshooting, difficult maintenance, long construction period, and delayed use. Often, it is necessary to destroy the original project, resulting in increased consumables costs and project development; Wired callers are more convenient because once a malfunction occurs, the faulty product can be replaced or repaired without affecting the use of any customers. Wireless callers make information transmission more timely and provide customers with more caring services;

Fifth reuse rate: 1. The reuse rate of wired callers is poor. Reason: The secondary value of wired products is not high, and they can only be abandoned when renovating or moving; Two wireless pagers are better, because the installation and disassembly of wireless pager products are flexible, easy to operate, and the installation position can be changed arbitrarily, making the reuse rate high and saving costs;