Depends on if you want a stereo headset or mono. Also, check out Bluetooth Central forum on this site for user recommendations. I have the Jaybird JB200 stereo one and it doesn't seem to stay in my ears like it should. Anything more than a walk and it tries to fall off. Slightly frustrating, and dangerous, when you're running 7.5 on the treadmill. Sound quality is pretty good however.