Headphone and microphone combination, has headphone with primary and secondary headphones, and signal transmission cable attached within primary headphone, where end of cable is connected with plug at call forward switching box

摘要

The combination has an independent connector plug for transmission, a microphone (2), and a headphone (1) with primary and secondary headphones that are connected together with a connection cable. A signal transmission cable (12) is attached at a specific length within the primary headphone. The end of the cable (12) is connected with a connector plug at a call forward switching box.