Changyin Yinyang CY20 speedlite

Recently just bought this very cheap speedlite for fun at Hua Ho Department store, just selling its fro B$20.00 and giving it a try at an event. So far this universal speedlite are useful as a backup or if you are worried you will lose your expensive speedlite. Unfortunately the details and user manual are in Chinese so it proved useless for us who didn't understand it.