You know, Im not very sure, which is why I've called for the documentation. Although these are generic, depending on which one you buy, the same module might, or might not support audio. For example, min ( http://www.ebay.com/itm/ws/eBayISAPI...m=260697768531 ) shows pinouts for only power, ground, tx, rx, status LED and the mode. BUT, the same module at http://vi.ebaydesc.in/ws/eBayISAPI.d...&sd=3&caz.html has documentation available on the page that does show audio support. Another interesting feature is what they call the wireless RS232 mode, where its a drop-in replacement for serial connections, without any pairing required