The use of wireless microcontroller serial port on the problem of the module baud rate

I use the SCM and PC serial port of serial use cable communication, no problem
Now want to put the cable to wireless module, I want to ask next if switch to wireless, then wireless module of between sending and receiving baud rate and single chip microcomputer and computer end baud rate must agree or said may not consistent?
http://www.siliconray.com/
If your module has a cache ability, it can need not consistent. It can only be consistent, wireless module transmission baud rate than single chip microcomputer and computer of between.