Kinda Strange
It works fine, but I have to ask, who has ears shaped like this? There is a unique plug on the bottom of the unit that this plugs into, so you have to get this proprietary headset, but the headset seems to be purposefully designed to be the most uncomfortable one ever. It doesn't balance on top of your head or behind it, and I personally don't like the flat ball sticking in my ear. Sound quality is okay, just uncomfortable for me.

Great
Yhis makes the XM even more enjoyable as I now can listen w3hile I am working out

happy with price, volume not great
the price was awesome, less than $13.00 for the arm band, rubber case & the antenna headphones. The volume is very low. I have started using the headphones as just the antenna & wearing another set of earbuds so that I could turn the volume up high enough. that works fine for me.