Short wave radio receiver used in long range bombers in WW2. Has been conveted to 120 volts, so you can plug it in the wall. Comes with speaker and a bunch of extra tubes and coils. Hooked it up (while in a valley and using metal shelf as antanna) and received a signal, not sure what was being said because it was not English. Unit looks to be in great shape. Great piece for an antique or hammer enthusiast