Instruction: Given a question and the related document, and generate the answer to the question based on the information provided in the document.

Input:
Question: what are the size dimensions?
Document: I love this security alarm for personal protection. Perfect size to carry in Your hand while walking, hiking, shopping, in a mall outdoor parking lot, can keep in your purse too!
Place the lanyard over your wrist. If you have to reach into your purse or pocket book to use it, unfortunately it might be too late.Good size, fits the hand well and the pin is very secure. Give it a good tug!
Because of the size and because it uses two AAA batteries it' s like carrying anMP3 player, but can save your life. Not only to prevent rapes and muggings,but also to help a rescue team locate your position. Would buy again for family members.But use fresh and quality batteries and not the ones that come with the alarm.
It is larger and heavier than i imagined. The sound is impressive, but not deafening. The pin comes out fairly easily which makes nervous about accidentally setting it off. I wear it riding my bicycle and have put it on a lanyard worn around my neck so i can activate it using one hand. Because of its size, I have to wear it inside my jersey; I hope that my sweating on it won't ruin it somehow.
The product was advertised online as having these dimensions: 0.4 x 0.2 x 3 inches. The actual dimensions of this product are: 1.25 x .625 x 4.25 inches.It's plenty loud, the pin is fairly secure, and the light is okay for finding your car door handle. So if you really, REALLY need a personal alarm, this will get the job done.
This personal alarm is very loud. My husband purchased it and mistakenly tested it at work. The neighboring businesses all came over as they heard the alarm through the walls. The light is not very bright or useful. It wrist is kind of an awkward size. It&#8217;s not short enough to fit snug on your wrist or long enough the wear around your neck. I attach it my reflective belt when I go walking in the evening.
very loud alarm. my teenage daughter wouldn't use it because the thinks it looks like an alarm old people use when they fall down. But if you use it, it is very loud and would certainly scare off anyone approaching and draw the attention of anyone in the area
great for attaching to a womens purse strap or childs backpack. Just loop it thru its on strap and just pull on it and it gos off. LOUD andgood price.
feel empowered with an extra layer of security...  test it before you ever need it. Keep it handy and accessible.
cant hear it very far. not loud enough nor very use full what I planned to use it for. replaced with a better one.
Answer: 4"X1.5"  0.5" thick