I researched other reviews before purchasing this product. I was looking for a bluetooth headset that was good in noisy conditions like the airport, car, etc.. This is the one!! It functions geat both in hearing and in speaking in less than perfect conditions. It comes with multiple earpieces for you to make the best match to your ear. Customer support from Plantronics is awesome! My first purchase of this headset saw the earpiece stop functioning for unknown reasons. I went through the claim process on their website and they sent me a new one that arrived in 2 days no questions asked!Great headset! I definately recommend.