Stereo ( Two ears )

Sennheiser Corded Headsets allow you to hold the conversation, not the phone. You can choose between one ear (Mono) or two ears (Stereo) coverage. Mono allows you to hear surrounding sounds whilst Stereo gives you complete freedom from surrounding sounds.

Many Wireless Headsets Wireless Headsets require an Electronic Hookswitch (EHS) for remote answering.
Please refer to the Sennheiser Compatibility Guide to obtain the correct connection details. https://en-au.sennheiser.com/telephone-headset-compatibility

Sennheiser DW 30 ML Binaural Wireless Headset