United States: Every country needs proper security, for security of VVIPs and such high class people special teams of professionals are frequently recruited. These professionals use walkie talkie radios to communicate with each other and their seniors. These radios are special and have some functions that help them to use it without being noticed, for e.g. palm controller.
The company Hytera which is known for PMR radio (Professional Mobile Radio) offers many types of radios throughout 80 countries with the help of its website http://www.hytera.com/. Even some police and government employed security agents use these types of radios. Their radios are known as safe radio. These are a type of mobile phones and because of their nature, technique and use they are known so. These radios work on frequencies and are commonly used for security purpose. You may see them in the hands of a traffic police, police or any security agent even fire brigades use these types of radio.
To use such radio is very easy, they work on two way process, wherein you can listen or talk at one time. This happens with the help of Push-to-talk technology. The mobile radio has one or two buttons and of the button you need to press one to speak and release the same to hear. This is why these radios are also known as 2 way radio. These radio phones are very useful in the time of calamities and war.
The advanced form of Professional Mobile Radio is Digital Mobile Radio (DMR), which is also known as pure digital radio. In China and America TETRA is the most popular brand series for these mobile radios. TETRA series has special TFT and multi touch video screen system. The special features of this brand help people to use it with minimal technical defects and threats. These TETRA series of mobile radios are available on http://www.hytera.com/.
Hytera X1e covert radio is also one such radio that has DMR technology and is from the same company. This mobile radio is slim and has modern hi-tech facilities like build in Bluetooth and USB port with wireless body function. This phone can be used in both analog and digital frame work. It is one such mobile radio that moves beyond single call and is also capable of holding group calls and conferences. It works as if a mobile phone that sends and receives messages and also gives vibration alert for all types of calls and messages. With this and such latest DMR advanced radio phones you can secure your country and its people.