Instruct: Classify a given review into positive or negative sentiment.
Query: Great Sound and Noise Cancellation - Fragile Earpiece

All in all I am very happy with the unit. I've tried various bluetooth headsets in the past and the voice and sound quality has been too poor to really make them worthwhile. Now, the state of California has passed legislation requiring the use of handsfree devices, so we're all stuck using them. I'm happy that the Jawbone is out there to meet this need!That being said, the earpieces are fragile. Mine snapped off without any negligence on my part. This required getting the broken piece out of the electronic unit (with a thumbtack and paper clip). However, I called Jawbone up and they were more than happy to send me a replacement earpiece - for free. No questions asked. This was pretty amazing service. On top of that, a four pack of the ear pieces only costs $9.99, so all in all it's not too bad if this happens again.I definitely recommend this headset for its unique and far superior sound and voice quality, despite the ear piece problem.