This is a Concert grade F key Southern Xiao (Nan Xiao) flute by Hangzhou maker Xie Bing.
Southern Xiaos look a little like the Japanese Shakuhachi, espeically the root part.
Its has 10 holes: - One blow hole, 7 fingering hole and 2 holes for tuning.
It produces a sweet and resonant tone close to the western flute. Its technique used are of similar to the Shakuhachi and normal Xiao.
It has a range from D1 to E3.
Available in G as well.