I had the original Motorola S9 bluetooth headseat (red/black in color) and used an adapter to connect it to my iPod Touch. I wasn't really pleased with it but it worked (most the time) and was better than regular headphones. I was content. After shopping around and reading reviews, I decided to bite the bullet again and pick up the new Motorola S9 HD bluetooth headset. This time I wanted to use it for my iPhone 3GS and Nike+. After doing the initial charge for 2 hours right after the box, I sync'd it to the 3GS flawlessly and the playing begun. I first used the iPod and listened to some music - different genres for different sounds, ect. At first I was bummed cause I heard a 'fuzz' and thought I was back to the original S9. Then realized the volume was maxed out, turned it down, and relistened. HOLY CRAP!! The sound of the new Motorola S9 is very, very impressive. I was completely shocked at the clarity and full range of sound. Even Petey Pablo sounded amazing with some nice bump to it! Tiesto and DJ Felli Fel - NICE! OK, OK, I thought. Now, let's try a phone call. Called my girlfriend to test it out and she said could hear me clearly like a normal non-BT phonecall. Huh! About time! - Motorola finally got it figured out. So far I am 100% satisfied with the purchase and would buy them again. I recommend them to anyone looking for some BT headphones. They even look sexy in all black now. Per the package, now I just need some neck tats and I am ready to go! Works great with the Nike+ app also - Thank you Motorola! ________ Now does anyone recommend a good arm-wrap case for running? Thank you!