Two Audio Boxes and microphones, Vintage toy Audio Engineer made by Electro Nuclear Devices Inc. Controls electric trains using voice commands. Both boxes are marked AUDIO ENGINEER Mfd by Electro Nuclear Devices Patd. Pending Made in USA  Boxes are 7 x 5" with UTA in raised lettering on the end with the electrical hookup pins.  A red and green bulb and attached microphone. Untested. Sold as is.