Microsoft added Bluetooth A2DP Sink to Windows 10 2004. However, a third-party app is required to manage connection. There is already an app can do this job. However it can't hide to notification area ...
What you see is pinyin, literally 'spell out the sound'. It's a system for romanizing Chinese ideograms, used in mainland China for Mandarin, a.k.a. putonghua.
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