2. What should I do if LEVEL 1 works abnormally?

No sound output after connection

1.Check whether LEVEL 1 has been switched to the correct input mode.

2.Check whether the cable is connected correctly.

Unable to connect LEVEL 1 to a mobile phone

Please confirm whether LEVEL 1 has entered pairing mode, or try clearing the pairing record and reconnecting.

Force pairing: Press and hold the volume knob for 3 seconds to enter force pairing mode.

Clear pairing: Press and hold the volume knob for 10 seconds to clear the pairing record.