The Senal SMH-H4X is a replacement cable intended for use with SMH-series communication headsets. It can also be used to augment your headset's versatility, giving you the ability to plug into a Clear-Com or PortaCom system if you already have cabling for a different broadcast console or mixer on hand.
At one end, you'll find the 2.5mm TRRS connector and corresponding locking jack. This twists into your SMH-1010CH or SMH-1020CH communication headset, establishing a secure and reliable connection all the while.
At the other end, you'll note a female, 4-pin XLR connector, allowing you to connect the headset to PortaCom and Clear-Com systems. In fact, the SMH-H4X is part of a whole ecosystem of SMH-series cables, all of which let you swap between the pin-outs of different communication and broadcast systems with ease.