The Jabra headset is a world-class, long battery life, perfect voice quality and comfort, how it has rarely. Five stars are appropriate. Unfortunately, I passed it, I can not use. The reason is not because of Jabra but to my ears. Since I have relatively large ears, the microphone does not look forward but downward. Thus I am particularly understand bad in noisy environments. A good friend of mine has the headset now in use and is completely satisfied. Highly recommended -for normal ears.