Cingular Go Phone: Cardo System S-640 Handsfree/hands-free Clip-on Wireless in-ear Bluetooth Headset/Headphone/Earphone for Cell/Mobile Phone Review

I've tried a number of various brands Bluetooth; each has some kind of problem, the fit, the weight, sound quality or battery life. This one, in comparison, is the best.
First, the earpiece fits well and very light, the sound quality is good on both sides of the conversation, and battery life is not bad at all. Unlike the common one-piece head sets, which require one to hang the entire device from their ear, this ear bud is much lighter, because the clip-on piece has the microphone, the rechargeable battery, and everything else that make it work. In addition, you don't have to leave it in your ear all the time, the clip piece has a built in ringer, so you can wear the ear bud only when you answer a call.
Pairing was very fast easy, same goes for turning on/off, or changing the volume.
Two minor cons: the power button on the ear bud needs some use-to, and the charger is not the universal mini USB, it has an unusual extra small rounded plug, which means you have to bring it with you if you want to use the headset, plus a car charger in addition to your phone's chargers. One star off for these cons.
Over all, this is a good product and better than any one-piece Bluetooth I've ever tried.

Click Here to see more reviews about: Cardo System S-640 Handsfree/hands-free Clip-on Wireless in-ear Bluetooth Headset/Headphone/Earphone for Cell/Mobile Phone

Product Description:
clip-on bluetooth headsetClip headset to your shirt- and then either wear the attached wired earbud in the ear- or tuck it into the clip. The headset will also buzz or vibrate when there's an incoming call. Rated talk time of 6 hours and a standby time of about 6 days.