New POC Network Radio RB21 is coming

New POC Network Radio RB21 is coming, do you want to have a try? Today we released a new POC network radio, model RB21.  Let’s check what it looks like first:

Retevis RB21 is the poc network radio. From the picture, we know, it has the display, and it is the smart touch screen. With the full keypand from number 0 to number 9.

What Makes the RB21 Wifi Network PTT  Radio Unique?

1, Support the 2G/3G/4G and wifi network

Retevis RB21 use the wifi and cellcular networks to talk.

EU version supports: GSM: B2/B3/B5/B8, WCDMA: B1/B5/B8, TDD-LTE: B38/B40 and FDD-LTE: B1/B3/B5/B7/B8/B20/B28A/B28

and US version supports: GSM: B2/B3/B5/B8, WCDMA: B1/B2/B4/B5/B8, FDD-LTE: B2/B4/B7/B12/B17/B28A/B28B/B66

2, Wider Coverage Area

Retevis RB21 POC network radio with the wide coverage area. There is no limited on distance. When you are in the same group, you can talk.

RB21 provices instant communication without distance limited. Where has the 2G/3G/4G networks, where you can use it.

3, GPS track and location

RB21 comes with the high-accuracy GPS antenna, also with the online dispatch software, while instant location can be tracked by different platforms like PC and other smartphones.

4, Retevis RB21 is a license-free radio

Retevis RB21 is not an RF conventional radio with VHF or UHF. It is a 100% network radio. So there is no need to apply for the license, and also there is no age limited. You can own or use this Poc netword without any limited.

5, Design with the loud and  clear speaker.

RB21 mic transimits a very clear signal. offers the louder and crystal voice. Suitable for multiple scenarios


Later we will write blogs about how to use this poc netword radio RB21. If you have any suggests or questions about POC network radios, please leave messages or contact us by email:


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4 thoughts on “New POC Network Radio RB21 is coming”

  1. Looks like an interesting radio… I wonder if it would work on a Cruise Ship? I go for a Cruise every year, and keeping in touch with friends in the Ship is difficult at times, most other typical radios have a limited range due to all the steel interference.

    1. Hi,if you want to use this poc radio, you need to make sure the place you use with the network, wifi or 2G/3G/4G. Because this radio should insert the sim card, and will use the cellular network.

  2. If it is Android based, needs to be upto version of Android in order to run Zello, Echolink, Droidstar, Teamspeak, etc.

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