Most definitely, and one of these devices should be on hand and linked to a monitor facing the reporters at each and every speech and press conference Obama conducts. Chances are it will result in chuckles and guffaws from the crowd. It would be fun to watch Obama struggle through his prompter readings as every remark brings a five second delayed howl from his audience.
If one of those were attched to a tv set everytime a politician talked not just Obama it would revolutionize politics.