Guys, I don't know what to say, I would only endorse something I believe in. I've actually used the product. It works for the majority of people who've tried the product. I'm only at this site to improve myself, not to sell anything. What wolf116 says is true, I've had mine for over a year now and it seems like it has a lot more life left. Granted if you use it everyday rigorously, it would probably only last a year. But I only use mine when I play sports or am going to sweat a lot.