"Good as a headphone but a abysmal as a handsfree."2.0 starson by veeraragavan.n
Pros: Good audio quality. Light weight. Mute and music controls.
Cons: Very poor range and connectivity. Phone calls audiable only on left ear. No or poor noise cancellation for mic. Not usable in noisy conditions like traffic. Controls placement not headgear friendly.
Summary: The S9 has a pretty good design both in terms of sturdiness, visual appeal and ergonomics. The only downside is that you cannot use it while lying down/leaning facing upwards. I usually have to lean sideways while relaxing or lying down. I use a handfree while driving and that too inside a helmet. The placement of controls is not easy for reach when used within a helmet. I use a hands-free a lot for my official conference calls where I might have be part of calls while traveling especially on sub-urban trains or while driving a motorcycle. Here the mute button is really useful so that I can mute/un-mute for participating/answering. But given that the mic is really really poor and picks up so much of background noise, the person on the other end is really being nice to you if he does'nt disconnect or voice his discomfort.
The S9, although not great, is a good pair of head phones with good enough audio quality for listening to music. Although this is marred to a great extent by the range it provides, which is abysmal. Whether it is music or a phone call, the audio drops are pretty high while on the move. I'm surprised that the original reviewer gives it a score or 8/10 and list only pinching as a problem. The pinching problem goes away once you get used to it for a week or 2. But functional problems like these are here to stay. If not for there the S9 would've been the best headset given the light weight and battery time for the same. The battery life although nothing great to rant about is just about enough for a full-time hand-free user like me. All in all a mediocre headset.
I also own a Nokia BH-501 which has amazing audio and mic pickup quality but is very flimsy in design and lacks music controls and a mute button.