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: What Channels do have avaiable? Can we order the channel of our choice? Let me know. Thanks
Document: The trouble with ordering on-line is you don't know what channel's they will be sending you. In my case I needed a pair of matching channels.Another pro or con, depending how you look at it is the 9V battery. This is more common and easier to find than the 12V battery some of the other wireless switches are using.I really love the switch. However, I wish we could order it on-line and specify the channel.
I bought 2 units. They are available with 5 different channels: A, B, C, D and E.  Both units shipped to me were channel E so they conflicted in the same house. There are no dip switches to change the channel. I had to return one and they were out of stock so I had to order something else for the 2nd room.
Turn switch on - it works. Very easy to setup.2)  They come in different channels. Now Amazon doesn't give you a choice which channel your unit will be on when you buy it (This is a con) but there is the opportunity to buy locally and make sure it set to different channels. So this is a pro because the product is available in different channels (just not through Amazon. )3)  Did I mention it is easy?
Everything Heath/Zenith makes works perfectly. I have three of these wireless switches and they work flawlessly. The only problem is, when ordering, you don't get a chance to order a specific channel. When you have more that one, you need them to work on different channels to avoid conflict but Amazon does not have any provision for specifying which channel you would like. I have some gadgets make by Heath that are many years old still working like new.
One year later one of my neighbors bought a switch that uses the same channel because my lights would go on and off without me doing the switching. I didn't know which neighbor it was, so I would flip the switch on and off to hopefully let them know someone else has a similar device with the same channel. After two days, they got the hint and I have not had the problem since.I want to add another pair as a 3-way switch for my dining room.
first let me preface my remarks by saying I love the design and concept ,however it only worked half the time I don't know if this is normal or  if the one I ordered was defective
This is a recap of some other's reviews, plus my own input.The switch is terrible, you barely touch it and the light goes on or off, or, you completely flip the switch and nothing happens.Complaint number two is the lack of choice when it comes to channel selection.
I love the entire idea of this product. But, what I did not know was that you can't have more then one in use in your house, unless you have different channels. I would have thought the manufacturer or Amazon would have atleast mentioned or NOT shipped me 3 of the same Channels. 2 of them are worthless to me. A little human interaction is not a bad thing Amazon. Think! Or atleast give the buyer the option. I will be returning 2, but the one works for now.
Mine was set to channel 'd' when I received it and I see no way to changing channels. So if you want to use only one of these, buy this one right now, today. If you want to use more than one and don'e want everything going on/off with only one switch, buy locally and make sure they are on separate channels. I am only using one now, so not a big deal.
It works wonderfully!Let me start by saying that I love these wireless switches. The design is a little strange though due to the fact that you have to unscrew the front panel to access the battery compartment...with a flathead screwdriver no less (who uses flathead screws anymore??). I like the fact that they use a 9V battery that you can pick up at the store, rather than the special order battery usede by the HandiSwitch that I previously had.
Answer: yes