Instruction: Output yes if the supporting document can answer the given question. Otherwise, output no.

Input:
Question: what size of batteries does it take and how many?
Document: When you play cards they sometimes will curl from side to side from those tight fisted players.Solution? -3) turn the cards face up to shuffle if face down isn't working too well. Or bend then cards from side to side back into a flatterstack.4) cards are kept clean. Food and drink are not meant to be shuffled.And to the other naysayers - keep in mind that this is plastic, runs on batteries and costs barely $10.
we tried numerous times and this machine kept binding/jamming up and would cost more to send it back so giving it to GOODWILL.
does shuffle but not right. leaves one side while shuffling the other side, i cant believe i have to write this much to post
We replaced another card shuffler that we were not satisfied. This one works every time and was not too expensive. Good value for the price. Would recommend this product.
We purchased one of the metal repro crank style shufflers being made and it fell apart within two evenings of playing, just like the reviews had warned.
This product only lasted for 2 days of use. Made very cheaply! I would not recommend it to anyone who is thinking of ordering it.
This card shuffler worked exactly the way I expected it to, and I am very pleased with it. I would recommend it.
My friend bought the "best seller" six-deck shuffler and found it broken at the very first use, so I was so worried before I tried this one. This was securely packed in a tight box, and was not damaged at all.
I smile every time I press the button and the cards are shuffled fast and efficiently. I have hope that this shuffler will last a long time.
I love the Card Shuffler. It works perfectly everytime as long as I place the cards evenly in the shuffler. I am very happy with it.and would recommend it to everyone.
Answer: yes