I was exiceted when I received this bluetooth ear piece because I was tired of using chord ear pieces due to the cables getting tangled everytime you take them out. I was dissapointed with the 510 because out of the box couldn't connect to my Nokia 6682 and I had to configure it 5 times until finaly the phone recognized it. I had the piece for about 1 year now and it's pretty durable, light and battery life is excellent. I can walk around my apartment with no problem and I can talk for many hours without recharging. My 510 came with 3 ear detachable tips with sponge covers. Ear tips are detachable for different ear cannal sizes, 2 sponge covers for the mic piece which I never used. I have lost the ear tip pieces because sometimes they come off. I gave it 3 stars because my friends can't hear me when the wind blows or when there is background noise. Also, from time to time the bluetooth connection will drop from the 510 back to the phone then back to the 510 and it's very annoying. If it wasn't for the background noise of the wind I would've gave it 5 stars.