H10-40 every time.
Perfect headset, mic can be positioned accurate, low head band height, reliable and clear electret mic.
Originally came with foam rubbers which were good, good wires and plugs. They do crack with age (20+ years) between the mic and earphone grommets.
I have had same headset since 1988 in almost daily use, 14k hours
I have used these with all sorts of headsets with students. Still to find better.
Even the noise cancelling annoy me as they seem to use poor mics that pick up a lot of cockpit noise. Which is ok for it's owner
but not me
.
Avoid the rubber boom mics they are hard to position next to the mouth for best transmission verse noise and now our DC one's the booms are breaking off at the ear cup. Also avoid tall head bands, they can catch on the ceiling or sun visors.
Noise cancelling are hard for students as they can't hear engine noise feed back.
Also avoid, but it's hard, gel ear seals, they don't last long and burst.
Early ones were liquid which would ruin clothes, the later gel look like snot all over your hands.