Instruct: Classify Amazon reviews into positive or negative sentiment
Query: CAN'T HEAR YOU

The INVOCA simply doesn't work. It would work great if your TV was always off, but unfortunately it can't disemminate between background noise and your voice. Furthermore, you need a robot to talk into the microphone, because if you ever change your tone the invoca will never understand you. Obviously it is inevitable to do so, to account for the frustration of dealing with this worthless gadget. Don't buy, i give it a resounding NO. I wouldn't even use it if they paid me. It isn't worth the hassle.