You already have enough to deal with in the office or at a busy event without throwing in a big, bulky walkie-talkie. Fortunately, traditional two-way radios are as small as 5.8 inches and weigh 4.6 ounces, while surprisingly, the Retevis RT22 Series radios weigh only 3.99 ounces and measure 5.35x2.2x0.83. That's the problem with smaller models: downsizing the antenna and transmitter requires some compromises in range. If you work in medical or dental offices, restaurants, retail stores, hotels, photography or catered events that don't require great range; the smaller two-way radios provide the perfect solution.