Instruct: Classify Amazon reviews into positive or negative sentiment
Query: I can't hear you!

I have been looking for a decent cordless with answering system for my home office. The instructions for volume control on the handset aren't very clear, so after messing around with a headset and so on I finally figured it out. The volume on the handset can be adjusted only when the phone is on with the arrow keys. I had the phone for over a week and was ready to return it before I had figured this out. The Answering system is easy to use, and remote access is a breeze.