Walkie Talkie
A walkie talkie is a communication device that allows you to communicate with others from a distance. They are most commonly used for military purposes but also provide a great way of communicating when you are in an area where coverage is poor or you don’t have a cell phone signal. They work by converting your voice into radio signals. They will have a microphone and speaker, an antenna, an LCD display, function buttons, a battery and circuitry to make the conversion. Most walkie talkies use a single frequency channel which means that you can only send and receive messages on the same channel. This is sometimes called half-duplex or a two-way radio. If you are on a ski slope or trekking through the woods a good pair of walkie talkies will allow you to stay in contact with your friends and...