Klein Fu Sprech D. Also known as the Dorette. Introduced very late in the war, this was the smallest portable radio set. It was unique in that it could operate in transmit or receive mode and had to be manually switched back and forth.
Specifications:
Frequency:
33.8 - 38.0 Mhz
Types of Signal:
Voice
Range:
3/4 mile
Antenna Type:
3 ft Flexible whip.
Batteries:
1 x 2v wet acid
More information to follow soon.