I like Anker?s stuff and this is no exception. However, if you go on Etsy, you can buy one of these for a whopping $80-$90. Bought my first set like 8 months ago, 2nd set maybe 3 months ago, and now another. Slightly muffled with bass distortion. I wear them 6 hours a day every day. The battery life is good I got about six hours before need a charge. No real information here other than sales related brochure info. My Kate Spade watch charger too small for watch charger spot and has a hard time staying in place though. Also, the leather laces NEVER stay tied, no matter how tight I tie them. Highly upset about this!