Instruction: Given a question and its related document, determine if the question is answerable by analyzing the information in the document. Output yes if the document addresses the question, or no otherwise.

Input:
Question: I can add a second bell to the Dakota Alert DC-1000  i need 2 bell and one Push Button ??
Document: It's very helpful for the caregiver to be able to leave them and do something else, knowing that they can ring for help when they need it.Before we got the Dakota DC-1000, we tried a wireless doorbell we got at Lowes. This didn't have enough range -- it was reliable perhaps only one room away.A few minor complaints:1) Sometimes the alarm unit stops working -- it does nothing when a button is pressed.
[2] We use the bell to page our sons for meals or chores when we don't feel like using the intercom system. [3] The lady of the house uses the one in her car to summon helpers when she returns from shopping trips. She'll call when she's leaving the store and then hit the alert button as she's coming through one of the front gates over 500'+ from our ranch home. This is much more elegant and effective than honking or fumbling with a cell phone.
We got to thinking about how to solve multiple problems with one solution. You see, we recently installed an airlock on the front door of our rambling country ranch home as part of an energy efficiency retrofit. This made the existing doorbell inaccessible to visitors which was in need of solution. We also needed a better way to coordinate as family and to wake our sons in the morning.After looking at dozens of options, we bought the Dakota Alert and several extra remotes.
The DC-1000 Did really well in straight line application . I am putting it in a large shop . I put in two buttons and two receivers and put them on two doors . I put it on two of the four zones . Both receivers ring , AWESOME . The button that wasn't a straight line , also had to go through two metal doors . I made a longer antenna and ran it inside the first door . Worked great !! Like this product will probably buy more for our other locations .
Yes, it works. But there are serious problems.First - it stops working sometimes. Pressing the door button does nothing. Press the reset button or pop a battery out and in and it works again. This happens every 3 weeks or so. So now I need to test regularly to be sure it didn't stop working?Second, and most annoying, it randomly goes off and plays a melody that I did not select. This has happened at all hours including 3am several times.
[5] The small size and easy dismount makes it possible to take the Dakota out to the garden or outbuildings so we don't miss guests. We're probably going to buy another or two to place near the garden and in one of the outbuildings for this purpose. Try doing that for $40 with a traditional hard-wired system.We will be recommending this Dakota Alert system to friends and family.
Although it's not clear from the instructions or website ... this unit does work in that fashion. I have one chime on the main level and another in the basement. Both work off a single remote button at the front door. (Initial Purchase) I had very high hopes for this product given the favorable reviews here. I ordered 2 units,  neither worked. While the remote button for each unit would active the chime,  the only Melody I could achieve was a soft clicking noise.
Allows for (4) different channels, so you can have it operate at four different entrances, with distinctive ring tones for each different entrance. They make a unit that has a 2,500 foot range, but was hoping this one with a 1,000 foot range, would take care of our needs, and it did so with flying colors. If you need range, skip the cheap units and get this one!
[2] RANGE: The wireless remote range is long; at least 500+ feet through brick walls and woods. [3] SETUP: Setup was easy and intuitive with well marked switches to choose from various options. [4] TONES: There is a limited number of tones from which to choose. We found one that's 'OK',[5] SOUND QUALITY: The sound quality at high volume is a bit buzzy/distorted but not unacceptable for an alert.
The existing melodies are fine -- I'd just appreciate more of them.Therefore, I've rated the DC-1000 4 stars rather than 5. But in spite of these quibbles, the DC-1000 gets the job done reliably and well, and we rely on it every day.
Answer: yes