We have tried almost every brand on the market and this is by far the best out there. My whole family uses them, I have an LG phone, my husband has a Blackjack and my 2 sons have razors and we all use this voyager 510 and we all love them and have not had a problem yet. My husband is a Paramedic and loves his and can hear great even in the back of the ambulance with the sirens going and it doesn't fall off his ear like the motorolas did. I am getting my mom one for Christmas and highly recommend this product for anyone looking for a GOOD bluetooth.