Concealment: Trenchcoat, Slick
The unfolded umbrella works as the antenna, while the rather heavy handle holds the electronics. The transmission microphone is located at the top of the umbrella handle.
The umbrella radio has an additional component an ear piece which is necessary to amplify the volume of the received transmissions. The ear piece is quite small.
The transmission range only a kilometer or so. The equipment is powered by small batteries which have sufficient charge an hour of operation.