This product was suppose to solve the problem of retaining my cell phonebook. It turned to deliver more problems than solve them. I've spent the last 30 days trying to get resolution as to why this product does not work. Finally I am returning this product because it simply doesn't do what it says it will do. Don't recommend the purchase of this product! With as much time as I have spent trying to get this product to work I could have input all of my phone entries manually saving me time!