Walkie Talkie
A walkie talkie is a wireless communication device used to stay in contact. Its benefits include allowing people within range to hear one another's voice. The radio signals they emit are a part of the electromagnetic spectrum and travel at the speed of light. A walkie talkie is ideal for a variety of outdoor activities where cell phone coverage is limited. They are also useful in remote areas, such as whitewater rafting, where cell phone reception is minimal. A walkie talkie has two functions: to send and receive messages. They are battery powered and work on specific radio frequencies. Radio waves are part of the electromagnetic spectrum, and they travel at the speed of light, or 186,000 miles per second. When a walkie talkie is in receiving mode, it will emit a hissing noise or static. W...