Instructions for Use
Page 2
... 12 FR Connecting the MM 400 using the audio cable 15 Using the MM 400 16 Adjusting the MM 400 to the listening situation 16 IT Changing the volume 16 Remote-controlling connected devices from the MM 400 ....... 17 Resetting the settings of the MM 400 19 Transporting the MM 400 20 ES Cleaning and maintaining the MM 400 21 If a problem occurs 22 NL...
... 12 FR Connecting the MM 400 using the audio cable 15 Using the MM 400 16 Adjusting the MM 400 to the listening situation 16 IT Changing the volume 16 Remote-controlling connected devices from the MM 400 ....... 17 Resetting the settings of the MM 400 19 Transporting the MM 400 20 ES Cleaning and maintaining the MM 400 21 If a problem occurs 22 NL...
Instructions for Use
Page 23
...Bluetooth button has been pressed too long. Remove the battery pack from the headset. Switch the Bluetooth function on (see page 11). Problem Possible cause Solution No operation indicator - Recharge the battery pack (see page 16). Switch the headset on (see page 13). ...Increase the volume too low. (see page 15). The connection of the optional dongles. Switch the audio source on again. If a problem occurs ... Switch the headset on (see page 16). If necessary, pair the headset with an audio source. Bluetooth connection is switched off...
...Bluetooth button has been pressed too long. Remove the battery pack from the headset. Switch the Bluetooth function on (see page 11). Problem Possible cause Solution No operation indicator - Recharge the battery pack (see page 16). Switch the headset on (see page 13). ...Increase the volume too low. (see page 15). The connection of the optional dongles. Switch the audio source on again. If a problem occurs ... Switch the headset on (see page 16). If necessary, pair the headset with an audio source. Bluetooth connection is switched off...