Given the task definition and input, reply with output. In this task, You are given a review of Amazon's food products. Your task is to divide them into two classes: negative or positive, depending on the content of the review.

It works. It's comfortable and easy to use. I only wear it when I know I will need the help, and keep the battery compartment open when not in use - this helps a lot with battery life. Clean the wax guard and ear dome regularly, and you can order replacements if you need.
positive