Yes of course. I need to be more specific- but in my ignorance I thought that this kind of audio project had been made already with arduino lilypad. In theater performances actors often wear compact mics and have battery 'packs' that are attached with velcro to their bodies. They do not need to wear large heavy amplifiers or huge batteries. I was curious to know if it might be possible to combine this set up with a 'soft' speaker. What actually inspired me to think about making something like this is that I know someone with a disability-who might not in a classroom or group situation be able to raise his voice without straining and is tired of explaining the huge audio amplifier weighing him down.
thanks for all the replies!
J