Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Hard to Use + Poor Sound Quality

Bought this phone, charged it up and instantly noticed problems with the sound quality. Sound cut in and out frequently and it was hard to carry on a conversation. If the other end is another 2.4 system or a cell phone, the callee typically has a real hard time following the conversation. Also, this phone is hard to use which is apparently a typical problem with these new phones. I also really missed the 10 number speed dial. After fully charged I also found the handset very warm, almost too warm to handle. The keys are also very easy to accidently push which can cause problems if you are on the phone talking to someone. Yuck! Returned this one. I've experienced similar problems with other 2.4GHz phones, so this may be problematic for these new phones. I will probably go back to the less trendy but more reliable 900MHz phone line.