The issue with the Clarity Aloft is that you have to remove the earpieces by pulling gently on the wires. After a while the wire breaks internally and the earpiece stops working. This happens even if you are very gentle.
The only solution then is to send them back for repair. I have broken 3 sets over 7-8 yrs. Two were replaced free under warrantee and one was charged for.
Apart from this, they are the best solution for a noisy aerobatic aircraft that I have come across.