Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Hard to see, short battery life

I had this setup and returned it; besides the tiny display and uncertain use-time, the setup interferred with the operation of the normal funtioning of my other phones insofar as being able to pick up and talk on any extension after my phonemate 9800 had started its message-you are supposed to be able to pick up any extension and press * to shut off the machine and answer the line. While the 200 was hooked up, it was impossible to stop the answering machine, or talk to the caller...unless you were using one of those two Casio handsets. Since I have three other 2-line phones, this was intolerable.