Tirsquare Tx-300 is a Secure and Encripted radio.
No matter how many times you repeat that, it won't become true. There is no encryption whatsoever on Trisquare radios. They use normal, plain old FM analog signals, merely switched from frequency to frequency every 400 milliseconds.
Get 50 radios. Tune each to one of the 50 channels. You'll hear the transmissions just fine, at full range. (Yes, there are very expensive commercial radios that do this in one 'radio').
Or get a near-field receiver, and within 10-50 feet, you can hear it just fine. This has been done, and works.
No matter how many times you repeat the 'big lie', it doesn't become true.
The Trisquares are 'reasonably secure', but in no way actually secure against serious monitoring attempts by those with some bucks.