Motorola S9-HD Headset (Black)

Pros: IF they worked, they would be very convenient for using with an active lifestyle (gym, bicycle, jogging, etc) ... too bad you can't do those things with these headphones

Cons: You can't sweat at all in them!! Any mild sweating causes the buttons to not work.
ear buds are not very comfortable
Customer support is poor!

Summary: After the first use my headset went bad - sound/button problem. I used them when working out and like so many complaints I found after doing a google search, only the volume down button worked. Plus, my charge was only lasting 1 hour. I tried using the headphones a few more times but it is pretty pointless to use them when the sounds is so low that you need complete silence all around you to hear anything.
I tried using mine in the gym and when bicycling.
Evidently, you can't let any sweat get on the headphones, or the buttons go bad. Do a google search to see how many complaints there are about these headphones. Plus, see the YouTube video which shows one recommended work-around by spraying the headphones with hairspray before using, in order to creat a type of protective sealant against any form of perspiration.
Additionally, Motorola support is pretty useless. After making it through the voice-activated call-screening system I received "help" from a tech who really didn't seem very keen in helping me. My problem is that I bought my headsets when back home in the US, but I live and work overseas. Motorola, for being an international company, does not provide INTERNATIONAL support!!!! When I repeatedly asked to speak with his supervisor, he refused and said they have no supervisors available. After the 5th request to speak with a supervisor I gave up on that idea. He finally relented from my insistence and told me that they will ship me a replacement product to a relative's address in the US (great... now I have to wait until December to have my second pair break within a few days!!).
I will repeat the refrain of so many others. DON'T BUY THIS PRODUCT and avoid the hassles of dealing with poor product quality and poor support.
By the way, in my google search I came across so many complaints of people replacing these headphones between 3 and 13(!!!!) times!!!!