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

Input:
Question: do you have to hold the button down or can you turn it on and walk away to where it is pointing?
Document: This is a great product! Very easy to use with various mounting options that makes hard installationsa thing of the past. The red laser was visible in every condition I've tested and has really good range.The mounting options are very useful, especially the built in magnet on the device, which lets you easilyattach the device to many metallic surfaces. The included mounting plate can also come handy in many situations.This device can also be used as a laser pointing device when you turn on the switch to the opposite direction.
the back side has only magnets and a battery door.All said and done this is a mediocre torpedo level but I give it 4 stars because there is no other product on the market today that is in this price range and is a small torpedo with a laser dot. I dont care much for the line but it could be useful for installing stair hand rail brackets and such. I still prefer lower tech methods for what the line offers but a compact torpedo with a laser pointer..
This level gives off a nice bright red beam and really is helpful when leveling off tiles or picture frames.
They all do different things.The line laser on this seems useful for only one thing, casting a line that is not level. for casting a level line there is a ton of set up and a lack of accuracy. this is not a knock on this product, I simply want to spell out the professional uses for this tool as i think people are buying it for other uses and giving it undeserved bad reviews.
The packaging seems secure and was taped properly.
The description mentions adhesive mounting strips but none were included. It also says various mounting accessories but all that came was the thumb nail and the 1 mount. I wasn't impressed and didn't want to put holes in the wall to use this so I returned it.
THIS IS THE LASER LEVEL I HAVE BEEN WAITING FOR!! As a senior citizen I don't need a laser level often but when I do I want it to be easy to use with all the basic features I need. THIS IS IT!! Very well made and so easy to use. You can use it alone or with the help of another person to mark the spots you want without the need of mounting it on the wall or on a tripod.
Its very small, and to make it accurate i have to buy now a tripod, because it is hard to fix it to take the level fine. And it doesn't come with the  (1) Adhesive Mounting Strip, (2) Thumb Nail Mounts,
Its a good product, but missing one small feature, a built-in wall attaching pin. It should have at least a built-in thumb tac or something I hate using a screw on a finished wall.
I originally bought this item to assist in installing track lighting but soon found that without some additions (tripod perhaps) I was not able to use it. A stand where the unit would project up perfectly leveled would have worked great.I have yet to use it for its more traditional purpose such as projecting a line. I will be working on some stud walls and installing electric outlets, cabinets, etc. and this may help.
Answer: yes