Euphonycart Presents Kadence Bongo. Bongos (Spanish: bongó) are an Afro-Cuban percussion instrument consisting of a pair of small open bottomed drums of different sizes. In Spanish the larger drum is called the hembra (female) and the smaller the macho (male). Some historians state that the attaching of the two drums was a later invention that took place in Cuba. These bongos boast of superb construction, great finish and come in a natural brown colour.