Picked up one very cheap at about $15 to try with my iPhone, iPad and various Android devices.
- very good audio quality
all features work with my Galaxy Nexus ie calling, answering, next track, volume
easy to pair with iOS devices, not quite so easy with Android Ice Cream Sandwich
very good battery life, and uses standard mini-USB charging port
- to pair with my Galaxy Nexus I had to make the GN discoverable, which wasn't immediately obvious
on occasion the audio stream pauses on my GN, for some reason while I'm walking. If the phone is in my pocket, then it can only be 3 feet mac from the BT99s, so don't know why this should be
with my iphone 3GS and Bluetooth tethering the audio pauses now and then, I reckon this is more the fault of the iPhone than the BT99s though
- Yes, its not really a feature of the headphones, but the combination of the BT99s with my iPad and the iOS TED app is simply fabulous!