Instruction: Given a question and the related document, predict if the question is answerable based on the information provided in the document. Output only yes or no.

Input:
Question: How do you activate these? It says there is an internal button. Do you press something to activate?
Document: After the handwarmers are activated, they will harden and stay quite warm for quite a while. To reuse them, just submerge them into boiling water until they liquify again (be sure to use a strainer or hot pads or something when removing them from the hot water!). These can be used over and over again.
I bought these because they were advertised as being good hand warmers. Since I ski almost every day in the winter, I wanted something that was reusable and would fit inside my ski gloves/mittens. However, they are much too large to fit in gloves or mittens. They seem to be more suitable for applying to sore muscles.
These things are unique,  heat very well, and are fun to activate. But recharging them is a huge hassle, and if not done perfectly, will resulting in ruining the product. I was given two as a gift, and decided to purchase 2 more from the website. Customer service is excellent, Btw. After using each of them a few times, I've ruined two. The instructions say to cook them until the crystals have fully dissolved.
These handwarmers are terrific! Not only do they work, but using it is like a little science project in action. The HotSnapZ hand warmers start out liquid with a little metal disc inside, floating around. You press on the handwarmer right on the metal disc to give the metal a little snap. The the liquid will look like it crystalizes from the inside, out. It really is a cool thing to watch.
they were very well received and most people had never seen or heard of these . the Re-useable appealed to all of them
being able to reuse is a plus  had to that leaked after first use. replace free from supplier. great customer service
We'll see. Although I was hoping these would replace the disposable hand warmers, their size and heat duration will probably prevent that from happening. I still plan on purchasing disposable ones for longer outings and size convenience.
We bought these so we would have portable heat for baby bottles, and they work out pretty good.They won't instantly heat a bottle, but pop it, wrap it in a blanket with the bottle, and in a few minutes, nice and warm.Traveled through airport security with one in the liquids bag and were not hassled.
Took about 10 minutes total.
To reuse it, you need to cook it in boiling water until it is liquid again. Let it cool and when you want to use it again, just click the disk inside and it activates.I've tried the Little Hotties hand warmers and could never get them to work consistently. I've also tried another brand of reusable warmers like these and they didn't get hot enough.We've used ours over a hundred times with no issues.
Answer: no