Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: Would these be for 9 and 11 year old children?
Document: I originally purchased these headphones for my 11& 9 year old children.These are not made for children of this age group. The ear piece doesn't cover either of their ears, it does cover my 2 year olds ears though. The sound quality is decent. The plastic is 2 year old durable. The interchangeable inserts pop out very easily.
Bought for 9 year old granddaughter and she always has them on. Great buy!Would recommend for kids. Loved the colours.
Great headphones. Got my 9 & 5 year old boys each a pair for use with the Kindle Fire HD & Nabi2 they got for Christmas. I particularly like the noise limitations so they are not able to turn them up too high. Would have given 5 stars, however, the interchangeable covers are difficult to keep on.
My 4 year old son likes these headphones. They seem comfortable and he can adjust the volume himself (but they don't go up too loud). Overall, I would recommend them to anyone with small children.
These headphones are ridiculously small. I bought them for a 10 year old and there is no way he can use them. The ear pad section is so small, a quarter did not even pass through the outer padding ring into the section that is suppose to cup the child's ear. These headphones would possibly be good for toddlers, but not older children.
These headphones worked well for volume and size. They did not work well function wise for us though as the padding is removable and it came off very easy. I spent the majority of our flight putting the pads back on the headphones over and over with my two and four year old. I think these would be great for older children though.
Purchased these headphones for my six-year-old son. We previously had some headphones that had ear pieces that swiveled. They always seem to get tangled up. These headphones work great and the earbuds are stationary. They are smaller headphones and would definitely not work for a child over about eight. I think these headphones ideally would be made for children two through seven.
My daughter is 9 years old and loves these headphones. It is a great buy for a young lady that is looking for a &#34;nice&#34; set of headphones. I would recommend this item!
My daughter loves this headset. It is comfy, and fits a 9-year old kid just fine. Be aware that there is volume control on one side of the circular ear piece, so the child can control the volume independent of the ipod.
Easy for my 9 year old to use. They fit on his head well and I liked that the headphones have their own volume control knob. However, after only one month one side stopped producing sound. The following month the other side quit. For the price they are a decent set of kids headphones, just don't expect them to last for more than a short time.
Answer: I have an 8 year old that loves them. I think 9-11 is age appropriate.