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: What are the speeds, and what ages/level is it meant for?
Document: The first Lightning Strike I sent back to Amazon. I tried a dozen balls through the machine and none made it out the end. They all jammed into the drive wheels.The replacement unit did the same thing. I was ready to write a scathing review until I saw the manufacture willing to help out those that were having trouble with their machines. I changed the speeds back and forth. Slowly but surely, balls started to exit the unit with increasing force.
item was poorly made.....after one use the motor blew out! Also the fastest speed you can set is not very fast at all and the slow speed isnt worth anyones time.....very unhappy with this product so i sent it back for a refund.
it works awesome according to my son who actually uses it. He claims there is nothing not awesome about it, I would say the not awesome is the price of the balls that you have to purchase with it. :)
i'm sure its a great product but the one i got just did not work. the wheels moved but the balls did not fit through the opening.
but after the purchase my grandson switched to soccer. Don't know how much he'll use it. Perhaps he'll switch again.
broke even before we finished setting it up.broke on the first day of use. it is a horrible quality.
You get exactly what is advertised, it's a pitching machine with decent pace over a short distance. The balls are harder and can be hit further than I expected. The pitches vary slightly so it's not really a machine that's going to help with mechanics but more to help you practice getting your eye in. I also use it to help me practice catching. The ability to use an adapter or batteries is convenient and I'm very happy with it so far.
When there is a variation in pitches you must learn to adjust your swing in order to make contact. I also bought a SKLZ Lightning Rod bat which makes it even more challenging to make solid contact.One thing I also wanted to mention: one time I misplaced a piece from the pitching machine and couldn't find a replacement part for sale on the SKLZ website. Then I called the customer service number and the representative insisted on sending me a new part, free of charge.
We got this for my son's 4th birthday. We use the adapter so I have no feedback for the battery use. Load the balls and your are ready. Easy to set up, easy to store and easy to use. As far as speed, accuracy and height - I'm happy with it.
This was a great product -- the first day. Probably ran about 50-70 balls through it. The second day, it won't even turn on. Don't know if it's the motor or the cheap plug. Tried multiple plugs and extension cords with no luck. Enormously frustrating. See all the other negative reviews. You would think it would last longer than this. Avoid this product unless you want an annoyed kid.
Answer: yes