Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Only useful when the speaker is 1 ft from the transmitter

This unit worked fine in my car, when my iPod was about a foot from the receiver. But the reason I bought it was so that I could put my iPod in my bike's seat bag and have it work with my bluetooth headphones. No go. If I was holding the iPod in my hand while riding, the audio worked fine. As soon as I put it in my seat bag (which is still less than 4 ft. from the headphones) the audio would drop out constantly. Do not waste your money.