Instruct: Classify Amazon reviews into positive or negative sentiment
Query: TERRIBLE

PATHETIC! Doesn't work unless the headphone is facing the transmitter and within 2-3 feet. Even within a 2-3 foot range you can't turn your head without losing the signal. Specifically, I placed the transmitter directly beside my treadmill. I could only get a signal if I turned backwards on the treadmill. I'm no good at running backwards, so the headphones were garbage to me.