I am a semi pro drummer playing in several different genres and need to hear what's going on around me, obviously! I bought these on the spur of the moment after a really poorly monitored gig and have never looked back.
Simple to use, clear sound, compact size and, so far, have never let me down unlike the very expensive set used by the lead singer!! The only reason I haven't given a 5* rating across the board is that the headphones are not brilliant but easily solved for a small (compared to the big brands) additional cost.