Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great low-cost cordless headphones

I wanted IR headphones because I didn't want problems with radio interference and manual tuning. The IR has good range and completely covers a large work-out room.The headphones are a bit light and depending upon your workout style, you may have a hard time keeping them on. I don't have any problems on a treadmill or exercise bike.Audio quality is good.The charging stand is convenient, but it may take some fooling around to place the headphones so the charger is engaged.Considering the price, these are better than I expected.