Do you know how walkie-talkies can achieve long-distance communication❓

In fact, as long as the frequency band + network intercom technology is used, the intercom can also communicate across the country and even across countries~

How does he do it❓

1️⃣ Traditional intercom
Relies on "radio frequency" to communicate
Usually the distance is only ❷-❺km, limited by terrain (such as: mountains, buildings)

2️⃣ Public network intercom (hot selling model)
✅Card plug-in + built-in SIM card, connected to the network
✅No longer rely on distance, but on signal

3️⃣ Strong battery life, clear voice, free ️ options are also available
Suitable for: security, construction sites, logistics, bus fleets, tour groups, and even mountaineering/events

In which scenarios do you often need intercoms? 📪Tell me the recommended style that suits you~