Instruction: Analyze a question and its supporting document. Predicting answerability based on the information provided in the document. Output yes if the document contains relevant information to answer the question, otherwise output no.

Input:
Question: can I use the receiver on a covered porch?
Document: I had my doubts when I bought this, but to my surprise it worked perfectly. We used it in our warehouse where the door we needed to use the bells were 150ft from where the button was placed and both ringers worked perfectly.
You get what you pay for. Only 1 receiver worked at all and  on the rare occasion that it worked, it sounded like a sick animal.I was given a prompt refund though- so it all worked out. At least it was only a waste of time and not $ too.
The receivers require batteries and these are not provided(not a big deal as they were either AA or AAAs. I forget which. )I can attest the sound carries absolutely wonderfully. The receivers can also light up as well. As for the programming function, you simply lock the one you like to the receiver with a flip of a switch.
As a native English speaker I found the information and instructions on the packaging so amusing that I would almost have paid just for the joy of reading it!As to the product, it works very well so far. We are using it as a sort of medical call button and it works very well for this use. The receivers are loud enough to be audible in more than one room and the transmission is received by the upstairs unit without any problems.
First things first, the set we received was partially defective. One of the receivers doesn't chime. It blinks, so I know it's receiving the signal, but the speaker seems broken.The first receiver works just fine, and is pretty loud. It also does not plug in to the wall, or need to be attached. We can leave it setting on a side table, or take it wherever we go, so we think that it will work.My favorite part of this is reading the package.
These work well. Nice and loud. We actually turned one off because they were too loud. One is enough for our house. We will use the other one for out in the back yard when we are there in the summer.
I bought this in March 2013. It worked great up until November 2013. I really liked the concept of two receivers that I could place in different parts of my house. The ringer is loud enough to hear throughout my house (near my bedroom and in the laundry room). The instructions are a little convoluted, but eventually I figured out how to sync the two receivers to the same sound. Put the batteries in each receiver first, and then press the remote.
It can overcomeany (sic) obstacles during the course of receiving human use. The technology of "one to free" give you nore (sic) freedom and selection! ""More space...more music...more special passion..."
The signal from the button carries to each receiver. The sound is loud enough to get your attention.Each receiver also has a visual light display when the chime sounds. That is convenient for high sound environments or for the hearing impaired.
Item arrived on time. First impression is that it is very cheap looking and feeling. The packaging looks like those cheap product packages you see hanging in abundance in crowded retail stalls all over the world. Made in China, information on package is in poor English. States that you plug in the receivers when in fact each receiver uses 2 AA batteries, not supplied. The button uses an A23 12V battery which is supplied.The button unit mounts with an adhesive strip on the back plate.
Answer: yes