CX True Wireless | 11
Furthermore, you might not be able to perceive the full volume of the
CX True Wireless because the earphones currently do not fit cor-
rectly. Please use the appropriate size of ear adapters so they fit
snugly in your ear canal and completely seal your ears. For best
results, follow the quick guide on how best to place the earbuds into
your ears.
During the OTA firmware update an error occurred?
Answer:
In case you experience any issues during the OTA (Over The Air) firm-
ware update of your CX True Wireless, please follow the following
steps:
1. Insert both earbuds into the charging case for at least 10 seconds.
2. Take the earbuds out of the charging case and connect them
again to the Sennheiser Smart Control app.
3. Check the actual version of the firmware.
4. Repeat the OTA FW update or follow the instruction of the app if
the firmware version was not changed.
When watching video or gaming on my device is there a recom-
mended way to ensure the sound is in sync with the visuals?
Answer:
Perfect synchronization of sound and image is dependent on the
Bluetooth technology being used by your Bluetooth device. For best
results make sure you are using a Bluetooth device which fully sup-
ports Audio Video Distribution Transport Protocol (AVDTP) 1.3 or
higher. Thus, depending on the Bluetooth device or the mobile app
the audio/video synchronization experience may vary. It is recom-
mended to use always the latest software for your Bluetooth device
or the mobile apps.
How can I ensure the best fit for the earbuds?
Answer:
It’s always best to test the supplied ear adapters to find the size that
suits you best and delivers the best sound quality. The CX True Wire-
less packaging includes four different ear adapter sizes (XS, S, M, L).
Also try to twist the earbuds into your ear as described in the quick
guide until you find a comfortable position.
What should I consider if I have issues connecting my smartphone
with the Smart Control app?
Answer:
A very small number of smartphone models may have issues con-
necting the Smart Control app to the CX True Wireless. Future app
and firmware updates will improve on potential limitations of this
nature.
You may try to turn off and turn on the Bluetooth function on your
smartphone to reset the Bluetooth module or reboot the smart-
phone.
