Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Underpowered

It's hard to understand how so many can find the iTrip so wonderful and some of us can find it so terrible. Either there is some significant variability in the manufacturing of the product or the location and design of the FM radio antenna in some cars is the problem. In any case, the signal from the unit I received was so weak that there was noticeable static regardless of where I placed the transmitter and how I positioned the cable. It didn't matter which station I chose - they were all bad. Worse, even when it was stationary the static hiss would increase, decrease, increase and so on. Also, as others have mentioned in reviews, the audio was considerably quieter than the car's built-in components.Nice idea, but I second the review that voted for a stronger transmission signal. With Amazon's easy return process, and given the ratio of positive to negative reviews, you may want to give it a shot. But it's a shot in the dark.