Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Ease of use, comfort and mic quality are 5 stars

But the volume is 3 stars. This is a comfortable, easy to use head set, far easier than the Plantronics headset I had before this one. It pairs easily with the Razor phone, the controls are logical and intuitive and the fold to turn off feature is great. I have had no issue with battery life and with the car charger, it gets to a full charge in about a half an hour.My sole gripe is the volume of the ear piece. Not quite loud enough when I am in a noisy situation. The Plantronics could get loud enough to be uncomfortable. When I am in my car, it is usually plenty loud.