Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: Can this upgrade be used on xv signature?
Document: We decided to upgrade our Neato from the xv-11 filters to the pet and allergy kit. It works amazing. It is so much more quite during vacuuming and seems to pick up more of our pet hair. We have a long haired cat.
That did the trick for a few runs until the noise returned. I even took the bushings from the stock beater bar and that did not work either. Finally, I removed the pet upgrade beater bar completely and used the stock beater bar. No screeching noise! Could have been a bad unit? I do not know.
I used this on my XV-21 Target Stores Edition. It was easy to swap out the old brush kit and makes a big difference. I have all hardwood floors and the original rollers made a loud noise. This is much quieter and more tolerable. It definitely picked up more dog fur. If you have a pet and wood floors, get this. I highly recommend the upgrade.
I accomplished the upgrade and noted that the unit not only cleans more logically but hugs walls and corners much, much better.At the same time, I discovered the beater bar and filter upgrades on this site. Although I think they're a bit overpriced, they have given my vacuum a new lease on life. The filter is so much better it's not funny. And the beater bar now has brushes built in and picks up dirt, lint and hair far better than the old bar. If you are concerned that the unit is compatible with the xv-11 or other units, be assured that it is.
I'm hoping my xv-11 lasts for a few more years.
I had purchased my Neato XV Signature recently because I was replacing all my carpet with hard floors. Although it cleaned beautifully, it was very noisy on the bare floors. After reading other reviews I purchased the upgrade kit. It was so quiet that at first I was afraid that I'd installed the brush wrong and it wasn't turning. Nope, it was working, just much quieter.
My cat used to be a bit wary of my Neato, but not after installing this kit. Now, my cat doesn't even move when it comes towards him.It does pick up TONS of hair, so the brush needs to be cleaned every so often, but the noise reduction and increase cleaning power make it totally worth purchasing.
It used to do it effortlessly now it sometimes has to try different 'attack angles'. It also has more trouble with rugs that have fringes, the threads get sucked/brushed in and prevent the Neato from advancing. Not a major issue for me though.No comments on the new filter, it looks much thicker but I'm still using my classic ones for now.
Next, it runs... not quieter exactly, but the sound is more pleasant - no more annoying flapping noises that the old brush used to make, especially on parquet and other hard surfaces. I can't say much about the HEPA filter performance - but I can say that it's not more difficult to clean than the regular filter (unlike the HEPA filter for my "large" VC, which is a pain in a certain body part which I better not mention publicly), and the only drawback is that it takes up slightly more space inside the dust bin.
I own an older model Neato xv-11 that I purchased about 2 years ago. I use it about every other day, and I use a high suction upright vacuum about once a month. The Neato is not a substitute for a 'regular' vacuum but it does a good job in my opinion keeping floors relatively clean so that dirt is not ground in. My original review here noted that the Neato firmware upgrades were not Mac compatible. To my delight, I revisited the Neato site and discovered they now have a Mac App for free download.
Answer: Yes it can be used on your XV Signature.It is an upgrade for all Neato Vacuum'sMy vacuum is quieter now with the new brush to.