I recently bought some Cambridge Audio P100 wireless headphones, primarily for use when lsitening to foreign language podcasts when I go for my daily four mile walk and in the evening. I got sick of my Bose QC25, the cable constantly snags on vegetation, and the bass is overegged and mushy. My Sennheiser IE200 are horrible, it takes me a few minutes to untangle the cable, and there is no isolation from traffic noise . I’m amazed how good the sound is, comparable to my Sennheiser HD600 if not better. I really did not expect such good sound quality from wireless cans. It’s very neutral, very clear, no excess bass as is the current fashion. Music is wonderful with them. I compared wireless and wired connection, with my iPhone and iPad, with a range of music. and couldn’t hear a difference. User replaceable battery and ear pads too. If they had a better head band covering, such as painted metal, and replaceable headband padding, they would be premium in my book. I’m sure high end Sennheiser and some others sound better, but until a rich long lost relative dies and leaves me their estate, these will do.