Instruct: Classify a given Amazon review as either positive or negative.
Query: Good sound quality, but a couple things drive me nuts

Overall, the sound quality is good, so I have no complaints about that. There are two things about this phone that drive me absolutely nuts. First is the phonebook feature. It is a bit of a hassle to enter numbers and names into the phone book of the phone. Once the names & numbers are in one phone, I have not found a way to get them to automatically sync with the other phone. So, it is a bit of a game of "find the phone that has the phonebook" when I want to dial using the phonebook feature. Second is that the product didn't come with a belt clip. I purchased two headsets so that I could go hands-free and do chores around the house while on the phone. Without a belt clip, I may as well forget using headsets (separate purchase).