RB21 WI-FI Walkie Talkies Keep the Security of Campus
To prevent emergencies such as fires, earthquakes, buil […]
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The Things You Should Know When You Operate RT40B
The new FRS license free radio RT40B is coming out! It
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Retevis RB28 NOAA FRS license-free radio
NOAA FRS license-free radio Retevis RB28 has a 1.28 inch LCD screen, which is easier to operate.
Most of FRS license-free radios hasn’t have a screen, so it’s the reason why we develop and release it
Retevis RT40B new FRS license-free radio
New FRS license-free radio Retevis RT40B is released recently, it’s a small and light-weight body, and it is updated based on RT40 DMR radio
