About product and suppliers:
            19 full duplex sound card products are offered for sale by suppliers on Alibaba.com, of which sound cards accounts for 26%, book printing accounts for 21%, and magazine printing accounts for 10%. 

A wide variety of full duplex sound card options are available to you, such as 2, 2 (2.0). You can also choose from usb full duplex sound card

There are 19 suppliers who sells full duplex sound card on Alibaba.com, mainly located in Asia. The top countries of supplier is China, from which the percentage of full duplex sound card supply is 100% respectively. 

Full duplex sound card products are most popular in United Kingdom, United States, and India.