Flat (off) Piatto (off) Micro Speaker (under 1 inch) Altop.Piccolissimo (meno di 2,5 cm) Small Speaker (1-2 inches) Altop.Piccolo (2-5 cm) Medium Speaker (2-4 inches) Altop.medio (5-10 cm) Large Speaker (over 4 inches) Altop.grande (oltre 10 cm) User Adjustable Altop.configurabile