Instruct: Classify Amazon reviews into positive or negative sentiment
Query: As advertised!

I bought these headphones so I could listen to music while mowing my yard. The day they arrived, I plugged them into my MP4 player and hopped on the 20-year-old John Deere lawn tractor. Inside the shed, it's still too noisy to hear the music, but once I was outside it worked very well. Didn't have to turn the volume up to battery-draining, ear-damaging level to hear the music.