retevis RB21

To prevent emergencies such as fires, earthquakes, building collapses, or even more dangerous situations – shootings. Many campus have their own campus police or security teams. In such situations, instant connection between security personnel becomes critical. RB21 WI-FI Walkie Talkies can offer an effective solution. Unlimited Range In large campus, walkie talkies are be required […]

POC radios mean Push to talk over the cellular. Using the cellular network, you can talk to your members without a distance limit. Our Retevis RB21 is a Push-to-Talk over cellular radio, which is different from the traditional walkie-talkie and mobile phones. POC radios use the existing mobile communication network for interaction. Compared with the

For truck drivers, walkie talkies help them communicate quickly and efficiently. However, ordinary walkie talkies cannot meet their needs due to the short communicate distance. Retevis RB21 is different that it’s a sort of long distance PoC two way radio with a wider coverage area. Now I will tell you the advantages of it： Wide coverage