221 40 mm 4 ohm speaker products are offered for sale by suppliers on Alibaba.com, of which speakers accounts for 33%, speaker accessories accounts for 24%, and speaker & horn accounts for 5%.
A wide variety of 40 mm 4 ohm speaker options are available to you, such as plastic, abs and aluminum.You can also choose from white, blue and black 40 mm 4 ohm speaker,