I totally agree with "Kerbflötenfan" review from 19.062020, i.e. the flute is beautifully and precisely manufactured, and has a lovely, gentle voice! I have never played an end-blown flute before, but I have played transverse flute for many years, and I was able to relatively quickly produce clear tones on the dong xiao.
The only thing I really missed was a fingering chart, but I found one online, along with a very interesting intro to the dong xiao and study material; for the benefit of other buyers, here are the links:
fingering chart is at found at introduction can also be heard in youtube: https://www.youtube.com/watch?v=fB2fUEXL05o