The edge of the walkie talkie has the volume dial and the push to talk button. The back will clip onto a belt or the edge of clothing for ease of use.

Here's another Sonic Walkie-Talkie. For some reason, these were quite popular. This one is in the traditional style (not flip-phone)

While it looks gray-ish in these photos, its actually a bit more violet in color and the design is rather interesting. The ring around the speaker/microphone area is made to look like a giant ring, which the raised Sonic design looks like it is carrying. It's more than a modified stock-art, this raised design looks to be made for this specific purpose. The large button on the front is for doing morse code with beeps and dashes. (note the chart). Both units are the same, and each runs on a 9 volt battery and is about 10 inches high including the black coated antenna.