With my Samsung X105 (T-Mobile), I have gone through at least 6 hands-free set while driving, at work, at home, etc. I have come to realize that out of all those, this product is the most affordable with the best quality hands-free set available. The gel fits snugly into your ear (although one friend told me it didn't fit her) and the sound is crisp and clear, and with the noise-cancellation technology, all other noises are disregarded.The boom-mic lets the other callers hear you better, while the mic nor the cords disrupt you while you're working or driving. With one of the shortest mics available on the market, this is a good and affordable product.