Instruction: Output yes if the supporting document can answer the given question. Otherwise, output no.

Input:
Question: Are they adjustable? Thanks
Document: Also they are easily adjustable and comfortable.
Use these in an indoor firing range and they provide great protection. They are adjustable and comfortable to wear, and the price was right.
These earphones really work well to cut out all sound, whether for work or for other reasons. They are comfortable to wear and are easily adjustable.
Meets my need. Adjustable for smaller head and padding makes for comfortable fit. Versital and easy to carry and fit.
These muffs fit snugly and offer great hearing protection. They are adjustable, and have a wide foam cushion which makes them reasonably comfortable.
Bought two-for my husband & myself. They work great for both of us! They are adjustable for comfort and great for hearing protection. Very pleased with the earmuffs, and amazon's shipping & timeliness is to be commended.
But there isn't much that I would change. They are a good looking muff, are comfortable enough and do seal well. the tension is somewhat excessive- could be my fat head. Adjustable tension would be helpful. Good feel of quality.
I bought these for use at the local indoor shooting range. The quality is much higher than i expected for the price. They are a Premium earmuff hands down... That Term is not overused on this item. They highly adjustable and fit great! the price is great! 5 stars!
The adjustable headband looks padded, but in reality there's a piece of unpadded plastic that digs straight into the sides of your head.Did not block sound for me at all, because the earpieces were too big for my head, leaving a gap. Maybe this would fit better on a man with a big head.Bottom line: Hated it.
These things work really well, you cant really hear normal sounds like talking too well, but it sure cuts the bang from my rifles down to almost nothing... I only wish it were more adjustable as they feel a bit small on my head, like they barely cover my ears.... but again they do work really well.
Answer: yes