Columns:	Sound quality	Convenience factor	Looks	Standard sound cable (when the battery is depleted OR flight mode must be activated)	Dongle?	Other remarks
First roundup: Jabra BT620s	Excellent, albeit the reviewer mentions that, by default, it has less bass than the BH-601 / HT820	OK, better than the Nokia / the HT820	OK	-	-	All in all, the reviewer prefers it to both the BH-601 and the HT820. (He also complains about the music stopping for at least half a second when he touches a button.)
Nokia BH-601	Very good / excellent (according to the mobileburn article, it's definitely better ("the Nokia BH-601 has by far the best audio") than that of the HT820)	OK	OK (according to the mobileburn article, it's arguably the best-looking)	-	A PC-only USB stick; not usable as a stand-alone BT dongle and has no analogue sound input (that is, not a traditional external dongle)	Highly recommended if you want good music quality
Motorola HT820	Very good / excellent; the reviewer mentions the bass' being a little bit on the excessive side	Some dislike it, some don't; the author complained about it starting to be inconvenient after an hour	According to the reviewer (""Princess Leia" comments"), Pretty bad - it adds considerable (funny / strange) bulk to the ear	+	-	Highly recommended if you need a cheap but very good headset and the looks aren't a problem
Second roundup: Samsung SBH100	Poor; weak bass and almost non-existing tremble	Not very good; while it sits on the ears better than other, similar models, it's still suffering from the usual one-side problems (it feels pretty insecure on the ear etc). As it doesn't completely cover the ear, it has problems particularly in noisy environment.	OK	-	-	Poor, not recommended
Cellink BTST 8010D	Poor; even weaker bass than that of the Samsung headset; trembles are better, though	OK	It's the best-looking of all - very thin and elegant (this, unfortunately, is also a factor in the device's considerably weaker battery life (about 6.5 hours) and the somewhat limited Bluetooth range.	-	+; connects with a 3.5 stereo cable (no mike!); has sound volume problems: the maximal volume is about half that of with A2DP	If you need either a cheap / good-looking model or a model with a dongle and the relatively bad sound quality isn't a problem, do get this. (Compatibility problems with the Qtek 8500: the headset mike didn't work.)
Plantronics Pulsar 590	The best of all, albeit it lacks some trembles	Really convenient	OK	+	+; connects with a 3.5 stereo cable (no mike!); unlike with Nokia's or Cellink's dongles, however, it has a one-second delay, which makes it useless in, say, movie watching	Highly recommended