Characteristic of the So-na (Suona) are the profiled body made of dark-coloured wood, in which each finger hole is located in a turned recess, and the bell made of aluminium or brass. An attachment with two balls (which can also be perforated) and two discs carries the small reed. The instrument has seven frontal tone holes and a thumb hole. This type is also played in Japan and Vietnam. This so-na has a handsomely grained body with pronounced indentations around the slightly oval finger holes, a protruding two-part funnel and a reed holder with a lip disc and tiny opening for the mouthpiece. The ornamentation on the top of the body turns out to be part of the support attachment.