Follow these instructions to add sound to your Mirobot
The parts
This is an easy one! All you need is this small speaker:
Step two
Plug it in to the two pins on the main PCB marked "sound". It can go either way around, it doesn't matter.
Step three
Peel off the ring of paper and stick the speaker on to the base of the chassis. This will make it reverberate more and be louder.
Step four
Now you can use the function in the web UI called "Beep" and hear Mirobot express itself using sound. You may need to update the UI firmware in order to do this.