Antique Soviet USSR Russian Microphone Oktava MD-47 1963 Jack Plug. These have step up transformer inside. Tested, working good. No papers, just picturefor technical info.Will be shipped from EU by Air Mail International priority mail.Thanks for lookingI will ship to USA, Canada, Asia, Australia and Europe countries. PayPalonly. Same flat shipping rate to worldwide as to US Mainland. If not clear about shipping price, please ask to calculte..