A walkie talkie watch is a radio wristband that runs on either an FRS (Family Radio Service) or GMRS (General Mobile Radio Service) frequency and generally provides a communication range of about one mile (about 1.6 kilometers), depending upon environment and terrain. To create this product, manufacturers attach a walkie talkie unit to a strap, producing a two-way radio that can be worn on the wrist. Just like a hand-held transceiver, a walkie talkie watch has a transmitter for sending out radio signals as well as a receiver that accepts signals. Walkie talkie watches operate on frequencies or channels that exist through the transmission of electromagnetic waves, which are created through electrical impulses or signals.
A typical walkie talkie watch is made up of a microphone, transmitter, circuit, receiver, speaker, and battery. Sounds enter via the microphone and are turned into electrical impulses, the transmitter sends the sounds as radio signals. The circuit — a coil and capacitor, chip, or crystal — maintains that both listener and speaker are on the same frequency. The receiver captures the signals and the speaker transfers the electrical signals into sounds and amplifies them so they can be heard.
Besides batteries, walkie talkie watch products generally utilize additional accessories such as earpieces and battery chargers. Models are available that suit adults as well as children, and they are intended for use on household properties, excursions, or public outings. They are not intended for long range use.
Many walkie talkie watch models are available that utilize both FRS and GMRS frequencies, and it is important to understand the difference between the two. The Family Radio Service (FRS) frequency is part of Citizen Band (CB) Radio Services, which, in the United States, provides 40 private channels for use on a first come, first served basis. Use of a walkie talkie watch under this frequency requires no license and may occur in any area where the FCC (Federal Communications Commission) manages radio signals.
The requirements for using a walkie talkie watch under the General Mobile Radio Service (GMRS) are a bit more stringent because these radios operate at a higher wattage, usually between one and five watts. Individuals planning to use the radios under the GMRS frequency must apply for a license, usually valid for five years, in any area where the FCC maintains communications.
To ensure compliance with FCC regulations, specific manufacturer details can usually be found in the watch instruction manual.