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 big is this and how much does it weight? thank you!
Document: This is the perfect size stun gun. It fits nicely in the hand. Thankfully, I haven't had to use it. The only negative is the tiny, tiny instruction leaflet. The font is about 1-2 point type. Even with 3.0 readers and a 10X magnifier, it's still hard to read.
My husband is a plumber that goes into bad neighborhoods late at night. He was very happy with not only the flashlight, the stun portion, and the battery life. It was worth the cost to make him feel more secure and makes for a happier wife waiting for him to come home late at night with the added security of his personal protection.
It's crap. I got mine followed the instructions to a t and the taser worked maybe the first 3 times I turned it on. Worst purchase ever.
Answer: no