Aviation Headset 3M X5!
Up to 43,5 dB noise absorption.
At the moment the best ear defenders on the market.
PTT side left or right.
No volume control.
The advantages of headsets fixed to the helmet:
the ear cups can be flipped upwards or aside quickly and easily
on the ground you can thus hear normally
in the air you can ventilate your ears whenever you like
Headsets for 2 mt band radios
All with fixed curly cables to the radio
The advantage: the cable is strongly fixed to the ear cup.
The disadvantage: if you change the radio that needs a different connector you must buy a complete new headset.