Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Might be good as a personal defense item.

I tried it on a PC(xp and windows 7 64 and 32 bit) a Mac and even a linux box with powered hubs on all the different systems and it simply will not do anything. I must not have read the disclaimer about this being a replica of a functional microphone. Not sure how any company can send out things DOA, you would think they could test them or something! What a hassle and time and money wasted