While many of our readers are interested in some of my own posts, here is one i discovered whilst looking around stumbleupon it is far better written than I might ever hope to achieve. Maybe at some point I will get to their level, you never know.
2 Way Radios are unique in that the half-duplex channel they operate on will only allow one radio to transmit at any time, though there are no limits to the amount that can listen. Rather than have an earpiece similar to a telephone, they have a built in speaker so the unit does not have to be held to the ear. They are used to connect to both other handheld units and to radio stations which are in a fixed location. The typical shape is of a large telephone handset, with a fixed antenna poking out of the top of the unit.
There are walkie talkie headsets that come in pairs. Sometimes, these are the models that children want because they would like to play with their friends. This is a bargain for you because you get two headsets for just a price of one. Check also for the sizes of these double headsets. Gauge whether these can be word by children who will eventually play with these. If it means spending the extra dollar for a perfect fit, do so. Walkie talkie headset is such a cool toy to have and your child will have a blast just playing with it.
Some 2-way radios will go as little as a few hundred feet, which will only cost about ten dollars or so, while others will have long distant ranges, some of up to 10 to 15 miles or so. These may cost a little more, but will be worth it for the clarity and great reception they provide. It is all dependent on each individuals needs. Kids to not need long distance range the majority of the time, but big businesses will.