Sennheiser SL Headmic 1 Instruction Manual page 12

Care and maintenance
Cleaning the contacts of the connection cable
Over time, salt deposits from sweat can build up on the connector
and the socket. Clean the connector and the socket as follows
using standard isopropyl alcohol.
To loosen the connection:
Slide the silicone tube aside.
Insert your fingernail into the
join.
Pull the connector and the socket
apart as shown.
Moisten a small brush (bristle
brush or toothbrush) with isopro-
pyl alcohol.
Carefully brush off the connector
and the socket and remove the
salt deposits.
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