[Galaxy S III Accessories] shamez23:
That's a weird device. The earpieces don't have a battery. That neckloop probably is a induction coil. I wonder if and how that works.

Even if it does, I can't believe the sound will be anything else than tinny. For that price they just can't use a balanced armature driver which would fit the earpieces size and is also used in hearing aids an high end in-ear monitors.

If they use a cheaper moving coil driver, the diaphragm has to be really small and therefore sound probably won't be good enough to listen to music.

http://en.wikipedia.org/wiki/Headphones#Ear-fitting_headphones

Getting them in and out of your ear canal most likely will be a real *****. Keeping them in for longer periods of time will lead to all kinds of problems, like sweating, itching, increased production of ear wax. And they act as hearing protection, blocking sound from your environment which may be dangerous.

Granted, all in ear headsets do that to some extent but you can easily flip them out when you don't use them and put them back in in a heartbeat.

Do you actually need a device like that or is it just something geeky you would like to have?

Do you mainly want to listen to music or to make phone calls?

For really good sound I'd suggest custom molded in-ear monitors.

http://en.wikipedia.org/wiki/In-ear_monitors

You can get them in any color, different tones of skin color included. The wire is worn over the ear, and usually behind your back aswell. So no cables dangling around. They are not invisible but way less visible than ordinary ear buds.

They deliver amazing sound quality and the fit just can't be beat.

I have custom molded ear protection and custom molded headsets although not with the more expensive balanced armature drivers of the high end models. Once you get used to putting them in your ear you can do it very fast. There is only one position for them and that is sitting perfectly in you ear. They won't ever come loose accidentally, they won't fall out, they won't break the seal to you ear, so they will never have diminished sound. You can barely feel they are there. You have to try it before you can appreciate how much better they are compared to non-custom in-ears.

If that's too expensive for you, you could get something like that and give it a new paint job.

Cheap, sound not bad at all.

I have a pair of those, too and although they are not custom molded they fit very well. They don't stick out of the concha, giving them a very low profile. Because of the wire worn over the ear they won't come loose or even fall out at the slightest tuck at the cable, like many other in-ears. They aren't as comfortable as my custom molded earphones but I have no problem wearing them over longer periods of time.

Combined with a wired microphone that offers a 3.5mm headphone jack, you'll have a wired headset that offers good sound is not very visible and doesn't use up battery for bluetooth.

Or you get something like this.

That is similar to what you can often see agents and security details use in movies. They usually have those coiled wires/tubes that are quite visible and always make me wonder why they would compromise the low visibility of their headsets with them. Maybe because the tubes without coils aren't good for headmovement. I don't know.

Maybe the absolute invisibility part is important to you. Then my alternatives won't be of much use. But if you want good sound, which is more important to me, those alternatives are the better solution. Still kind of geek devices not many people have but at a more affordable price as long as you don't get professional IEMs.