Hi,

I am having this strange issue when i vonnect my mate 9 to the bluetooth speaker DOSS soundbox. There is a 2 second lip sync audio video lag while playing netflix/youtube or any other video app. The same doesn't happen if I connect to any other Bluetooth speaker. I have tried 2 other devices but they work fine.
I have tried resetting the bluetooth preferences and cleared the bluetooth list, unpaired repaired the soundbox. Cleared the phone cache. Everything. Nothing seems to work.

Can anybody help? Is anyone having a similiar issue.

Thank You!!!

I didn't find the right solution from the Internet.
References
https://forum.xda-developers.com/mate-9/help/bluetooth-audio-lag-doss-soundbox-t3659322
Social Media Campaign Example