Instruction: Evaluate the answerability of a question by analyzing the related document, outputting yes if the document contains information addressing the question, and no otherwise.

Input:
Question: how does the spead system work on the Proform 505 CST Treadmill
Document: I just purchased a new Proform 505 CST treadmill, and you're supposed to be able to just plug an mp3 player into the audio jack, turn on the player, and the music will come through the speakers. And that worked great YESTERDAY. Today, however, it won't play the music through the speakers.
So he chose the Proform 505 CST Treadmill as a &#34;middle of the road&#34; compromise.We scheduled the delivery for a Friday afternoon. The delivery guys would not bring it down to our basement for some reason, so they just left the box in our garage, and my husband had to carry it down piece by piece, since the whole box was a couple hundred pounds.
My previous treadmill &#34;died&#34;, so I decided to do some research and buy a new one. After a couple days of researching, I decided on the Proform 505 CST. Basically my decision was based on reviews and price. It took over 10 days for the delivery. I took my time with the assembly and did it by myself; no second person. It took me 3 hours, but the instructions were excellent.
The Proform 505 CST treadmill is just the right size for me (5'7") and without breaking the bank on cost.It took two people to put it together in about 1.50 hr. The treadmill is much quieter than my old one and has all the features needed to advance workouts.I would definitely recommend this product to anyone interested in purchasing a middle of the road treadmill with all the bells and whistles.
It has more exercise/track options. And it has built-in speakers, along with  a MP3 or phone jack, so you can listen to music with or without headphones. Easy music access make the workout much more desirable and the time flies by. But the best part is the price! This is a LOT OF MACHINE for the price tag. It's half the price of lesser machines I've seen in stores. I strongly recommend  the Proform 505 CST Treadmill.
I ordered my Proform 505 CST Treadmill and it was delivered on Wednesday, April 16, 2014. I followed all of the instructions to assemble and setup the treadmill. When I plugged it in and tried to use it, the belt slowed down when I put weight on it (I weigh 200lbs). I read the troubleshooting section of the instruction booklet and followed all the suggestions as to why the belt would slow. The belt still slowed so  I contacted customer service.
I've never had a treadmill before so I did a lot of research on treadmills for about a week before I decided to go with the Proform 505 CST Treadmill. I consider myself an expert at online shopping comparing prices & product reviews! :) I chose this treadmill because of the high ratings, backlit display, shock absorbers, chp motor, automatic incline, iphone capabilities and speakers, easy storage, quick results, & the best warranty compared to what's out there.
I purchased the Proform 505 CST Treadmill after doing a lot of homework. I reviewed all the reviews of other machines & decided that this one had less problems than the others.The machine came in one piece and the box didn't look like it fell off the dock a hundred times. Nothing was broken, and the shipping guy was really nice.It takes two people to put the machine together. There definitely are areas where the holes DO NOT LINE UP, which makes it almost impossible to screw the pieces together.
Even though we were past the time frame for returns, they made an exception since they saw that the package/product was damaged when we received it. Thank you Amazon!I wouldn't recommend this treadmill based on our experience. Maybe our situation isn't typical but I am not taking my chances with another Proform 505. I do however think Proform's customer service was very helpful and willing to work with me to resolve all our issues. And of course, you can always count on Amazon's fantastic customer service.
The Prioform 505 CST treadmill works very well I enjoy it so much that I have to use it everyday, so far iy works as promise. Thank you.
Answer: yes