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 bright is the strobe light?
Document: This is a good item. Make sure you have a tiny screwdriver otherwise you won't be able to put the battery in it. Very load alarm, bright strobe.
Hurts my ears, just hope it hurts dogs and muggers. The light works but don't seem really bright, not really using for the light, sound will be good enough......
Great device. Bought it for a daughter moving away for school. Compact design, very loud! Strobe could be a little larger but all in all a great little device.
Simple to use. Simple to shut off. Light weight for ladies. We are keeping them at the front desks so the gals can warn all if a gun toting crazy or something similar shows up in our lobby. Once the whole dept. hears the siren they know to run for survival. Simple but very effective.
Bought this for my daughter who likes to go running and getting lost in the woods. It is a great alternative to a chemical spray for self defense, and serves dual purpose if you're lost or hurt and need to get someone's attention. This is extremely loud. Literally stunning if it is aimed at you from close range. Light and small enough to fit in a pocket. Would be nice if it had a belt clip.
As a solo runner who enjoys hitting the pavement pre-dawn, this seemed like a great solution to ease any anxiety about things that go bump in the night. Both the alarm and the strobe met my expectations when I tested them, so I attached it to my water/fuel belt and headed out on a long run. Somewhere along the way, the alarm slipped off my belt without my realizing it, so I lost it on my very first run with it.Perhaps it would have been more secure on the waistband of a pair of shorts, rather than attached to a smooth belt.
You can never be "too" safe. So, when I head out for my early morning walks, I take this small, powerful little tool along as added protection. I'm delighted with this lightweight yet powerful device.
To install/change the battery, you need a tiny tiny phillips screwdriver (not included, of course). After finally getting the battery into this thing, I simply could not get it all together for a tight seal. It works, barely, it is not nearly as loud as I thought it would be. It would perhaps scare off a kid intending mischief but some druggie attacker would simply shrug it off.
This thing is piercingly loud. I bought this as well as the Safeguard Activator, which was a piece of crap. This one is super loud, works like it's supposed and is no nonsense. This alarm is the one to get if you're comparing options.
This security alarm packs quite a wallop....a loud shriek that can be heard all over the neighborhood if you activate it out on the street. There are two weak points, however: (1) The plastic screw that holds the belt clip on the unit tends to loosen (a dab of adhesive solves the problem), and (2) the pull pin comes out of unit a little too easily leading to accidental activation.
Answer: yes