INSERTING THE EARPHONES
If the earphone seems to be lacking in low frequency response (bass), check the
tightness of the seal between the earphone and your ear, or try one of the other
sleeve options.
Warning: Do not push the earphone sleeve beyond the ear canal opening.
Make sure that the sleeve completely
covers the earphone nozzle and is pushed
over the earphone nozzle barb. If any part
of the nozzle is exposed, the sleeve is not
properly installed. Replace the sleeves if
they do not grip the nozzle tightly.
left ear
right ear
nozzle
barb