Stromberg-Carlson Sound Powered retail

Product Name: Stromberg-Carlson Sound Powered retail
This Auction is For: A Used Vintage US Navy Stromberg-Carlson Sound Powered "Deck Talker" Radio Headset/Chest set - H200 This unit has a lot of wear due to age, use and storage. Headphones are showing a lot of wear too. This has not been tested. I do have more to sell if needed. #2 *** Free USPS Priority or FedEx Shipping in US *** Please look at the pictures carefully to get an accurate description of condition and feel free to ask questions. From the introduction in the H200/U retail manual: "Sound-powered telephones are just what the name implies. They are telephones powered by the sound pressure of your voice rather than batteries or an electrical power source. If your phones work properly, speaking in a strong, clear voice generates enough current to carry your voice to all other phones on the circuit.".