Question: Can I use any headset with my SM air?
Yes, the New Philips SpeechMike Air has a headset input on the left side of the unit. It is a standard 3.5mm port, therefore; most 3.5mm headset can plug directly into the SpeechMike Air.
I tested Andrea & Sennheiser analog headsets with my SM Air, it worked like a charm.
Verification Source: In house testing