Instruct: Classify the given Amazon review into its appropriate rating category
Query: If only the buttons worked...

Most of the buttons worked when these were new, but never the one that pairs to your device. I was able to get them to pair by starting my music, and using the settings on my phone. Since I bought them last minute before a trip I just went with it. Now, a year later, none of the buttons work. The sound quality and noise cancelling were very nice, but now the volume is stuck at a level only audible in a quiet room... Not really where you need noise cancelling.