Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: Works but sounds is "flat"

The sound quality I received though this device (even in international mode) was "flat" and not enjoyable to listen to. I expected at least radio quality however that was not the case. A huge difference is seen when listening to music through the itrip then switching over to a radio station with good reception. I am planning on trying another FM transmitter with a different manufacture.