Then, you need to be able to identify which journals are peer-reviewed. There are generally four methods for doing this: 1  Limiting a database search to peer-reviewed journals only. 2  Some databases allow you to limit searches for articles to peer reviewed journals only.
A walkie-talkie (more formally known as a handheld transceiver, or HT) is a hand-held, portable, two-way radio transceiver. Its development during the Second World War has been variously credited to Donald L. Hings, radio engineer Alfred J. Gross, and engineering teams at Motorola.
Most personal walkie talkies that are sold are designed to be very compact, with buttons for changing channels and other settings on the face of the radio and a short, fixed antenna. Two way radios do not rely on cell towers as the cell phone. They operate radio to radio independently from any other system.