Instruct: Classify the given Amazon review into its appropriate rating category
Query: Crisp and crystal clear.

The swivel mounted ear cups provide a nice fit for full ear coverage for clear quality sound. Being a glasses wearer, I found that I had no pain at the back of my ears where my glasses set. Meaning, the headphones don’t apply to much pressure. When I have it connected to my cell phone, there is a simple one push button process to take and end a call and I can control the volume through the phone or the headphones themselves. The headband is soft and flexible which remains comfortable after long periods of use. I use my headphones a lot when listening to audio books and find the sound quality is just as clear when hearing the narrator speak as when listening to music. Crisp and crystal clear. It came with a nice bag for storing it when not in use, as well as the necessary charging and audio cables. Very satisfied with this purchase of these Ghostek Bluetooth headphones.