ZP21030 bụ grille etinyere n'ihu onye na-ekwu okwu, yana onye na-ekwu okwu kpọmkwem grille.Ọ bụ netwọk ọdịyo na-ejikọta ihe ndị kpochapụwo na nke ejiji. Enwere ike ịhazi agba na ụdị, na-eme ka ahụike na nchekwa ngwaahịa.Ị nwere ike iji obi ike họrọ.