① When connecting for the first time, the TV's Bluetooth frequency works best with Bluetooth speakers at a distance of less than 3 feet (1 meter). ② If you can't scan: Please reset and try scanning again. ③ Sound and picture are not synchronized: There is a normal delay of tens of milliseconds in Bluetooth transmission of sound, and the compatibility problem between the TV and the speaker may increase this delay. Please try switching to a wired connection (OPTICAL, ARC) to have a better experience. ④ If the Bluetooth connection cannot be established, please contact us.