Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: Can a child open the battery compartment or is there a screw?
Document: Not sure how long the battery will last. Loud but not overly loud. In a loud environment you may not be able to hear this. At home it works fine.
When I contacted the company, they told me it was a battery issue, but when the ghost ringing happens only a week after I change the (expensive) batteries, I think not.
Very useful and came in handy quite a few times.Only complaints is sometimes you need to be closers than you'd expect for it to work and the batteries get consumed fairly quickly. I had to reset one to make it work again by removing and reinserting the battery, could've been because it was getting weak.
Really no effort at all required, you just pull out the plastic battery protector and push the number button for the number you want that remote to be programmed as.Cons:I don't like bulk on my key chain. I think it could be much thinner, and a bit more attractive.
Count on a short battery life. I have two units. By the time I need to find my keys, either one or the other has a dead battery...When it works, it does the job. But if it sits for a few months, all bets are off. I have lost all confidence in this product and am searching for one that does not eat batteries like popcorn.
I only change the battery in my car fobs about once every two or three years and they have much smaller batteries. I am still on my second set of batteries so only time will tell whether the problem was with the batteries they came with or the fob itself. Batteries are very inexpensive but every time you change them you must reprogram the fob.
I tested the battery and it reads exactly the 3.0 volts it is rated for. I figure that the 90 day limited warranty is 90 days for a very good reason. These units have not been abused in any way; there is no reason-- other than poor quality-- for a unit to have failed at this point.Please, do yourself a favor, don't waste you money on this product.
I bought the finder and  4 fobs. Good in concept but.....- flimsy- bulky- biggest problem is the batteries die so fast. Whenever a key is lost the finder doesnt do its job because the fob batteries are dead. They seem to last about a month and replacing the expensive watch battery is difficult.I threw them out.
could not get it to work called Texas  who distribute this. The person of( Melbourne) was  NO HELP. I had purchased from two  companies. this one and the Texas Company I never open the Texas company package as I could see no sense , all I want to do is return based on the only box that I opened. No Luck so far. Hope all can understandNo problem with this company as far as return.
I do recomend that you just buy two key bobs, smaller, looks better and has to be in the open to hear it any way, couldn't hear it through my wallet. When it came, I opened the box and pushed the button, and found it already working. No set up time. No reading long instructions. I put the key bob on my cell phone. Looks good, nice small size. I have to be in the same room to hear it.
Answer: There is no screw; a child could conceivably open it by pulling the battery from its receptacle.