Covert radio is a small radio used for security purposes. But of course it can be used for wrong ulterior purposes. It all depends on the user. It would be a welcome step, if it is used to safeguard personal belongings. This piece of radio is to be worn by a person in hidden manner.
The tetra version of covert radio is the latest introduction in the market. The compactness of the model makes it very easy for people to wear it without being spotted by anybody. This is an ideal model that can be used to spot a wrong move in the locality.
Covert radio can be operated from a long distance. This device can identify the voice of the people selected. In case of long session of vigilance use it’s quite a surprise that this tiny instrument can seek the person requiring help and also the people using it.
A radio that can be used to send and get a talking session is called a 2 way radio. A two way radio permits the user to chat with the other radio users on a same radio station. The 2 way radio is available in cell phone, held in a hand or a radio kept on a table. With the television and other electronic goods switched over to the digital technology the two didn’t lag behind and lo! Digital two way radios emerged.
The PMR radio or the professional mobile radio is a version of a two way radio that is used by professionals to enhance their business or career. A licence free radio can mean that licence is not necessary or it is not charged. This radio can be used by anybody who wants to get in touch with family or friends without worrying about the call /roaming charges.