This is because in the scene of screen projection+audio peripherals, there are many devices involved and the audio transmission link is long. In order to ensure the smooth video viewing effect, there will be the phenomenon of sound and picture synchronization or audio delay in this scene. It is recommended that you refer to the following methods to solve the problem:

1. It is recommended that you directly use the wireless projection function of your mobile phone or in-app projection to watch.

2. It is recommended that you don't use speakers as sound devices, but only use super terminals or NFC one-button projection mode to watch videos.