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

Input:
Question: are batteries included?
Document: works out of the box, batteries included. Have to hunt to find more of the itty bitty batterys. Going to the range and will see how it works.
This product sucked the life from its included batteries before I could achieve a proper sight alignment. Perhaps it was the battery brand...
Exactly what I ordered. Quick shipping. Haven't used it yet, but it looks fairly self expanitory. Batteries were included which was a plus.
Came with the batteries included. It shut off a few times but after removing and re-inserting it worked well. Great for coarse siting to save on the ammo
The laser has a hard time staying on at a constant brightness....may be the batteries included are not to full capacity, and old...good idea but not impressed.
The price for this product is reasonable. It fits well in my AR-15. However, the 3 batteries that was included inside did not last very long. However, I was happy with the purchased.
Laser is surprisingly powerful for the price, but there is no on/off switch. Either the 4 included watch batteries are in or out. Sell it in a little case for a dollar more and it would be perfect. Got the job done!
$.99 cents shipped, I purchased Four just in case but all work perfectly!Batteries included, but won't last long.Screw & unscrew battery compartment before each use.Will get you in the ballpark when sighting in.
Worked fine, as I expected it would. Simple to use: just add the batteries (included), and load in the chamber. Easy to see, and I had no problem seeing the red laser at 50 yards in mid-day sun. Sighted in my new sights, and was on the 10-ring from the first round.
The allen head screws that adjust the laser are extremely small. A tiny allen wrench included would have been nice. I put the batteries in and within five minutes of using and trying to adjust the laser, that batteries died. The cost of the batteries are probably half of what I paid for this.
Answer: yes