This vintage wireless intercom from Rittenhouse is a great addition to any home security setup. The Artolier model, made with solid state technology, is a unique piece that is perfect for collectors or those interested in vintage electronics. Please note that this item is being sold as untested and its functionality cannot be guaranteed. The wireless intercom can be used for door entry systems and intercoms, and is a great option for home improvement projects. Its brand, Rittenhouse, is known for quality products and this model is no exception. With its unique design and solid state technology, the Artolier wireless intercom is a must-have for any collector or vintage electronics enthusiast.