Would love it if you could replace them with a fully working set of headphones (volume down button didn't work the since the very first time I used them). These were great for travel (especially with the adapter it comes with), the noise-canceling did the job but I could still hear loud trucks on the street and crying babies on the plane. The sound is great quality though. I use these pretty much every day. I like the design, they arn't heavy/bulky, and they fit easily in the ears. I did loose an earbud after 2 months of use as the rubber loosened after a while of use.