This unit comes with a 4-pin male XLR connector. It's a great choice for clear communication. However, be aware that the cover of one of the muffs is starting to peel off.

Using this intercom headset is easy. Just connect it to your device with the 4 - pin male XLR connector. When using, make sure the connection is stable. Since the cover of one of the muffs is peeling off, try to handle it gently to avoid further damage. To maintain it, clean the headset regularly with a soft cloth. Don't expose it to extreme temperatures or humidity.