Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Low fidelity with Roady wireless FM modulator

The fidelity with the wireless FM modulator is poor. The unit is convenient if you don't mind a muffled sound (the high end is very poor or non-existant). I switched to the more cumbersome cassette adapter which improved the music quality significantly. Direct connect would be ideal however. The modulator was free with purchase but I got what I paid for.