Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not worth it

This FM Transmitter has a humming sound with or without music playing on it. The transmitter is weak. In a major city there is no chance of being able to hear you music. I bought two of these. In a Jeep Grand Cherokee with a Sony head unit the radio won't even pick up the signal over those being broadcasted in the city. In a Hyundai Elantra with a panasonic head unit the signal is being picked up but the humming sounds is too frustrating to listen to music over. A friend of mine has a Monster series charger and transmitter. His sounds 1000x better. Don't waste your money on this. Spend the extra $20 and get a product you'll be happy with.