About product and suppliers:
            840 av conferencing products are offered for sale by suppliers on Alibaba.com, of which conference system accounts for 1%. 

A wide variety of av conferencing options are available to you, such as no, yes. You can also choose from audio conference system, video conference system av conferencing, as well as from voting av conferencing

There are 39 suppliers who sells av conferencing on Alibaba.com, mainly located in Asia. The top countries of supplier is China, from which the percentage of av conferencing supply is 94% respectively.