Question 8: What is the Duff (a tambourine-like instrument without bells)? Is it permissible for women to use Duff and sing on any occasion other than weddings? What is the drum and is it permissible to use it in weddings or other occasions?
Answer: Scholars mentioned that Duff is a tambourine that has two faces; one face covered and the second face is open. It is used by women in weddings. This is permissible in weddings as it is a way of announcing wedding. Women may sing usual songs with the Duff by which they praise the bride, bridegroom and their families or the like... read more here.