These transmitters can operate unto 150 ft. and are suitable for large classroom settings, job trainings, group meetings etc. They have the capability to transmit the speaker’s voice directly to the individual’s ears, which is equipped with a suitable receiver. The system is field tunable and it is very easy to select any of the 10 channels.
One of the key features of these transmitters is the microphone mute switch. If the speaker wants to have a private conversation or desires to eliminate unwanted sound transmission to the rest of the group (like the sound of shuffling papers); he can easily turn this switch on or off.
A wireless communication that transmit information in a distance without using any conductors like cables or wire. The distances involved may be short (a few meters as in television remote control) or very long (thousands or even millions of kilometers for radio communications). We have common wireless gadgets are in used today for easy short and long distance communication.
- Professional LMR (Land Mobile Radio) and SMR (Specialized Mobile Radio) typically used by business, industrial and Public Safety entities
- Consumer Two Way Radio including FRS (Family Radio Service), GMRS (General Mobile Radio Service) and Citizens band ("CB") radios
- The Amateur Radio Service (Ham radio)
- Consumer and professional Marine VHF radios
- Cellular telephones and pagers: provide connectivity for portable and mobile applications, both personal and business.
- Global Positioning System (GPS): allows drivers of cars and trucks, captains of boats and ships, and pilots of aircraft to ascertain their location anywhere on earth.
- Cordless computer peripherals: the cordless mouse is a common example; keyboards and printers can also be linked to a computer via wireless.
- Cordless telephone sets: these are limited-range devices, not to be confused with cell phones.
- Satellite television: allows viewers in almost any location to select from hundreds of channels.
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