Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Hear Music Like You Never Have

I use these headphones for two things; blocking out noise and listening to my ipod. You need to place a AAA battery in the headphone to get it to work. The downfall is you also have to turn the switch on and off on the right headset. I have forgotten twice and had to get a new battery. I work in a very loud office and often cannot think. I slip on the Bose noise cancelling headphones and while I can still hear something, it is often very faint. When listening to music it is so crisp,clear--you sound like you are at a life performance! The only fault that I found were that they were too, big for my head. I would like to see Bose come out with a smaller version of this for women and children. Otherwise, I have never regretted this purchase. I also think BOSE should include a sample CD with these.. so one can get the truth, authentic sound. Advise---listen to a sound effects rain storm or the beach; you will literally think you are there.