Can not get over how low-priced the two way radio headset with mic is now, a tremendous deal for any top-end product!
The fist radio audio transmitter and receiver that was coined with the name Walkie Talkie was created by Motorola. The group involved created the Motorola SCR-300 using frequency modulation. This first revision was actually backpack mounted.
Not long afterward, during World War 2, Motorola produced what was called a Handie Talkie which rather confusingly is what we would now recognize as a Walkie Talkie. It had massively reduced performance, but was the first completely self contained handheld device.
There are 2-way long range walkie talkie radios that will provide long distance rage communication. Many will go as far as 12 miles. The most commonly used walkie talkie devices are the ones that are hand held and contain a button on the side that you push to speak. They are great and come in very handy for many things. They are often used while camping, hiking, shopping, home projects, and even in businesses like construction.
These walkie talkie devices provide a clear, easily accessible way to talk to someone who is not close enough to speak to face to face. Many of the two-way radios have clips and other accessories like 2-way radio headsets so that the radio can clip to your pant and allow for easy and simple access to the radio.
The transmission range that the companies typically promote is up to 20 miles although according to the terrain you would be lucky to actually reach a 2 mile limit. Being trained previously in electronics and radio in particular I find walkie talkies to be only as effective as a line of sight signal. If you encounter a hill or mountain you can just about be assured that you will not be able to communicate at all.