This is a pair of vintage headphones with model number Western Electric 528. They are suitable for live monitoring and have a single earpiece design with black color. The headphones have a headband form factor and, with an adjustable headband for comfortable wearing. The headphones connect via prongs as shown.This item is a great piece of vintage audio equipment, perfect for collectors and enthusiasts alike. It was manufactured during the World War 2 and Korean War era, making it a unique piece of history. Get your hands on this rare find and experience the amazing sound quality of this vintage gem. Great for HAM Radio operators and collectors of WW 2 items!