48 GB/IE/NI
Store the headphones in the charging/
storage box [6].
Prolonged storage: To prevent battery
deterioration, the rechargeable battery
has to be charged at least once every
12 months.
Troubleshooting
= Fault
= Possible cause
= Action
= No functions
= Battery drained.
= Recharge the battery as described in
“Charging the charging/storage box
battery“.
= No Bluetooth connection
= Error operating the headphones.
= Switch the headphones off and on again.