Tweaknews.net posted a review on the Cirago HS-450 Mini Bluetooth Cell Phone Headset

Given its size, I was very impressed by the call clarity on both ends (I even called my landline to listen for myself). Is it as good as $100 headsets? Not really, but it's a definite overachiever in the bargain entry, and one you should have a good hard look at if you are in the market for a new ‘set.

Cirago HS-450 Mini Bluetooth Cell Phone Headset Review