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: Do you have the keep the  button depressed for it to stay on (no hands-free)? I need one that can stay on without the button having to be held down.
Document: I use these little flashlights everywhere. I put one on the dog leash, one in my pocket, one in the car. They are very bright and seem to last forever. I take a week long camping/bike trip every year and used to bring a standard flashlight. Now I don't need one. I just keep one of these in my pocket so I'm never without a flashlight.
You get what you pay for. About half of the lights did not work properly. The lights come with a switch that allows you to keep them on without holding the button down. Only bout half of them worked. They all worked when you pressed down on them though. Wouldn't buy again, but they are still serviceable for what my intentions were for them(emergency bag,camping,etc,). They are also not super bright, but if you have no light, it's better than nothing.
I carry one of these on my person at all times. Great for finding keys, lost items on the ground, and as a backup to your primary light. They're cheap enough that they make for a nice gift to give to someone without feeling like you'll need it later, and so far with moderate usage the battery hasn't dimmed in any way that I can tell.
I got a light similar to this with one of my cases for my cell phone and I loved it, it is a keychain, and the light was super bright for being such a little flashlight. IT had a switch that you could keep the light on or just push the button which I loved. HOWEVER two of these the switch didn't even work.. But the button part works fine and the light is still super bright!
Purchased this for my father - thought the 10X meant is was 10 times more strong - to my surprise it meant we are purchasing ten of these flashlights not one - so for the price I guess I can't commplain. I did not like the button to push as you need to use your fingernail to get it to turn on - kept the order but ordered a better one for my father where all you need to use is your thumb in the center of the light.
These are really inexpensive, but great lights. I really like the "ON" switch, allowing it to stay on without being pressed constantly. These are so cheap I have been giving them away, and everyone appreciates them. I will be buying more. What a deal! !
Very bright for such a small item. Looking for keys in your bag... keyholes... puddles in the parking lot... this is the perfect size and brightness. The latch is handy for longer usage while keeping hands free to say, change a fuse or tire.
Fast shipping and all ten lights worked. Bright white LED does the job with a small and easy to use form factor. Squeeze and hold the main flat surfaces and the LED turns on or you can use a small switch to leave the LED on for hands-free operation. Can't expect anything more at this price - great value.
These are great little lights for the price. I'm attaching them to my car keys and back packs so I'll have light when I need it. I'm giving it four starts instead of five because two of the ten lights did not stay on with the switch selected. That minor annoyance is not a deal breaker however.
So I'd say this is a good light (at a great price) as long as you are using it in situations where you don't mind holding down the button with your thumb. It is not practical to use the "switch" that holds the light on to free your thumb from the task of holding down the button. For me, I'd rather pay a few bucks more and get a light that has a workable switch.
Answer: yes