Please Note
1. For optical connection, please close your TV internal speaker and change your TV audio output to PCM via TV sound setting (PCM is a form of digital signal that is used to represent analog data, and is an optional audio format on many televisions).
2. If the soundbar has delayed audio, this can be fixed via the audio settings on your TV.
3.The soundbar does not support Dolby and DTS, please kindly disable the Dolby and DTS via your TV audio setting or streaming video APP audio setting