Personally I think the Comply tips are best for sound
quality, but the winged tips have a stronger grip and let
you do workout and other physical activities without the
earbuds falling out.
It is also possible to change the equaliser setting by
pressing and holding + and - at the same time until the
headset beeps (3 settings available).
Q: What are the 4 included small rectangular pieces
for?
A: These are cable management clips you need to set up
the Over-Ear wearing style most suitable for running and
serious workouts.
This will eliminate annoying noise being transferred to
your ear due to the cable rubbing on your neck and stuff
the cable away completely.