I love my new blue tooth device that my husband got me last week. I didn't want one because I thought all those people out there with them were nuts, why couldn't they just talk on the phone? Well, now that it is a law where we live that you cannot drive and talk on the cell phone unless you have a hands free device. I love it and can't live without it now. Performance This device is great! It is working perfectly! Voice Quality Sounds great! The volume level is great for me as I feel that I may be losing the sharpness of my hearing. Battery Life Fine for now. Durability I think this product will last for a long time the cord seems durable and the earbuds are perfect size for me. Ease of Use Very simple to use even my mom has one now. My mom could never figure out how to use her cell phone right she couldnt even remember to hang up the phone after she used it, but now she is just as happy as me with it! Design I just love it! I think it is so easy to use and was definately designed for those of us who find it a little difficult to navigate through the electronic gadgets.