"Most comfortable headset on the planet."4.0 starson by jmmailin
Pros: Incredibly comfortable & lightwgt. Stable & doesn't fall out even using only in-ear loop & no ear hook. Sits close to head & doesn't fall off like Jawbone Prime. So unobtrusive you may forget you're wearing. Noise reduction ME is excel
Cons: So incredibly comfortable you may forget & go swimming with it. Noise reduction for person on other end of call has declined (before the swim).
Summary: Incredibly comfortable. Excellent noise reduction for wearer but call quality for persons on other end seems to have declined markedly over time. May be a matter of forgotten settings. Unit still working after 3 weeks after being found on bottom of pool. More comfortable than and doesn't fall out/off like Jawbone Prime but call quality for person on other end of call not as good. I would still buy again.