Tsuen Wan is a district and major transport hub in the New Territories of Hong Kong, also known in Mandarin pinyin as Quan Wan, which explains the two spellings used for this clip. The sound has circulated on user generated soundboards as a short meme item rather than as a formal recording, shared mainly for its out of context place name humour. Its appeal comes from recognition for Hong Kong viewers and randomness for everyone else, so it keeps appearing in edits, reaction posts and location jokes.