1 of 1 people found the following review helpful
Poor sound quality,
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This review is from: TeckNet 3.5mm Universal FM Transmitter With Build in Rechargeable Battery + 2.1A Multi Car Charger - Black (Electronics)
I bought this recently for iPhone 4S. There are two main problems, one that the FM transmitter keeps losing charging as it does not sit well in the iPhone docking port and the second problem is very poor quality of transmitted signal. You really need to crank up the audio volume on the car audio to hear clearly.