The right ear stopped working after 1 month, and the sound on the left side has become muffled. This thing worked like a champ! They seem pretty well made too, given the price. Additionally, I appreciate the manufacturer?s including all necessary tools for assembly as well as extra pieces. Go up a size if you order these. This ended up being a surprising purchase. Ive bought way too many adapters to try and hook up my drum sander. Many of these are much more expensive, and this is a quality product. They arrived with a bunch of loose threads and strings. Then came iPhone and I was disappointed I couldn?t have a replacement battery.