Timekettle WT2 Edge - WT2 Edge Hardware Information; Earbud Status Indicators; Charging Case Status; Charging Adapter Requirements

2）Set the source languages for both the earbud user
and the smartphone user.
WT2 Edge - Listen Mode
1）Just wear one earbud and tap [Listen Mode] (in [Listen
Mode], if the other earbud is also connected, do not place
it back into the charging case; if it is not connected
before use, you can put it back in the charging case).