Instruction: Answer the given question using the supporting document.

Input:
Question: Are they mountable on a tripod?
Document: This is my first real binocular purchase. It seems pretty good quality for the price. Images are sharp. The easily adjustable eye-relief cups make it easy to switch between members of my family who don't wear eyeglasses with those who do.The wide field of view makes it easier to see constellations when looking at stars and I don't need a tripod.The only drawback is that without wearing eyeglasses, I'm unable to focus to infinity with these binoculars.
This is great in the evenings when the sun goes does, and for looking at the moon and stars. You may think that 7x magnification is not that much, but it makes whatever you're looking at much, much larger than with the naked eye. Also, anything more than 7x magnification is difficult to hold steady for most people without a monopod or tripod. I had a pair of 20x once, and they were nearly impossible to use properly without a tripod. 7x is ideal to me. Best balance.
the price is good for the quality. the image is sharp and clear. but it is heavy than I thought
These are a very high quality pair of binoculars for a extremely great price. This is a full size binocular with crystal clear lens and protected in a shock proof rubber grip. It comes with a neck strap and top/bottom caps to protect the lens from scratches.
Since the item is not shipping to Saudi Arabia where I am working, I have to adress it to a friend's house in the US. I 've been told it has already arrived as been promised. Ofcourse I have not seen it yet but have had the chance of seeing and checking on one exactly the same model in one of the malls in Al Khobar, and it was awesome. Hope this one would be the same or at least does not have a manufacturer defect.
Outstanding and so clear. The moon looks like it's so close. I just can't wait till spring and ummer to really put it to use.
It was a nice decision to get a decent pair of binoculars, and the features offered in this Nikon model met all my expectations.
I love, love, love these binoculars. Everything is crisp and clear and appears like your viewing through 3D glasses. Great price and great product.
I love this Binoculars. Took this to Yellowstone and couldn't be happier with this. Nice big view and easy to operate. Little heavy, since I hold this for only few minutes at a time, not that difficult. I used this briefly for stargazing, which worked nice. But because of the weight, it is difficult to hold up to the sky for more than two/three minutes at a time.I would definitely recommend this to a friend.
I enjoy watching birds in my back yard and across the lake. I find the Nikon 8247 ACULON A211 are meeting my  need perfectly.
Answer: I just checked the manual, and YES, it can be mounted on a tripod.  There is an accessory adapter TRA-2 sold separately.