Operation Manual

3. Do not overtwist the tool;
stop when you feel a slight
resistance (about 1 rotation)
or you could damage the
audio filter. Pull the used
audio filter out.
4. So you can reuse the audio
filter, insert it in an empty slot
in the audio filter box; turn
and remove the changing tool.
Dispose of any soiled or
damaged audio filters.
5. Proceed with placing a new
audio filter in the earphones.
Make sure that the audio filter
is sitting in the dispenser with
the open side facing upwards.
6. Press the "flat end" of the
changing tool into the filter
ring and pull out vertically.
7. Push the new audio filter into
the sound tube of your
earphones. Tip the changing
tool sideways to release it.