Sennheiser EPOS ADAPT 660, User Manual, Page: 30 / 33

ADAPT 660 Bluetooth
®
headset
If a problem occurs ... 29
If a problem occurs ...
Problem Possible cause Solution Page
Headset cannot be
turned on Rechargeable battery empty
X
Recharge the headset battery. 22
Active Noise Cancellation
(ANC) cannot be turned
on Rechargeable battery empty
X
Recharge the headset battery. 22
Headset turned off
X
Turn the headset on. 12
No audio signal or drop
outs Headset not paired with a Bluetooth
device
X
Pair the headset. 8
Volume adjusted too low
X
Increase the volume. 13
Headset turned off
X
Turn the headset on. 12
Computer: Headset not selected as
audio device
X
Change the Audio settings of your
computer. 11
Headset cannot be
connected via Bluetooth Headset not paired
X
Pair the headset with a Bluetooth device
(max. 20 cm distance while pairing
between devices). 8
X
Check if your Bluetooth device supports
the HF or HS profile. –
Bluetooth at headset turned off
X
Turn Bluetooth on. 12
Bluetooth at mobile device turned
off
X
Turn Bluetooth on. –
Dongle not plugged in
X
Plug the dongle into the USB port of
your Computer. 8
Microsoft Teams does not
work: LED blue instead of
purple Dongle or Microsoft Teams
disturbed
X
Unplug and plug the dongle again. –
X
Re-start Teams on your device. –
Beeps instead of
voice prompts Voice prompts disabled
X
Enable the voice prompts. 25
Headset does not
respond to Smart Pause
gestures Smart Pause is deactivated by
factory default
X
Activate Smart Pause via the Smart
Control app. 23
Smart Pause may not be
compatible with your media player
X
Try another media player or streaming
app.
– –
Headset or dongle does
not react to any button
press Software or hardware problems
X
Turn the headset off and on again. 12
X
Unplug and plug in the dongle again. 8
X
Clear the pairing list of the headset. 30
X
Clear the pairing list of the dongle. 30
If a problem occurs that is not listed in the above table or if the problem cannot be solved with the proposed solutions, please
contact your local EPOS partner for assistance. To find the EPOS partner in your country, search at www.eposaudio.com.