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

Input:
Question: Is the video on 24/7 or does the doorbell need to ring to activate the picture?
Document: I received this item much quicker than anticipated. Once I received it I had it in stalled in five minutes. It has a good picture for the price and was perfect for what I wanted it to do. I have a four camera system on my home but needed another at the door on the second floor. No need to run wires plug play and enjoy, I am definitely suggesting this product to friends and family.
The main one (SD card) would have been avoided had I checked out the slot and put the card in before mounting. In the future, with care, I think it will be a non-issue.In actual use,  I predict that a guest will use the old doorbell and not press the peephole button even though it is clearly identified. I think that issue is minor, since if you are at home and press the ON button to see who is there, you can also take their picture.
Well, it did what it was supposed to do. Resolution is not great but good enough to see people around the door. It works well at night. A word of warning if you have glass/screen door, the reflection from the infrared LED's over exposes the picture. Once the LED's go out though natural light from the front porch light is all you really need.I like the door bell feature though I don't think it would be intuitive for someone who doesn't know it actually exits.
Simple to install. Using it can be a little confusing at first, but it doesn't take long to sort it all out. We bought this model because of its video, zoom and night light features. I was pleasantly surprised to find a 4gb micro SD card in the box. I hadn't realized one would be included. The kids have way too much fun with it. They all have cell phones with cameras, but still like posing ridiculously when they ring the bell.
peephole viewer camera too big. not compatible with regular sizes of existing hole. need adjustments, that's mind pay for labor. NOT GOOD!.
Customer service is great. The peephole sent did not work. I emailed them and they sent a replacement and I return the defective peephole. It is easy to install and the picture/image you see is great. I would recommend this for anyone.
Now, once I inform them of the door bell, people us it.So far, I've had it for about 2 weeks, so I cannot attest to the battery life.The installation was easy though the installing the SD card was tricky. You just need to pay attention to what you doing and you can install it with reasonable effort.
Here is what I found. The hole to insert the device must be 1/2 inch. I didn't have a peephole prior to this and centered the doorbell at eye-level on the raised &#34;cross&#34; wood of a panel door. That was a mistake because the mounting bracket for the indoor screen is at the top of the indoor part and makes it lower on the interior part of the door.
My result was acceptable, but not &#34;perfection&#34;. You will have to do the math to mount it in the way I would have preferred.Final mounting also has its problems. The connection of the doorbell to the screen involves pressing an incoming electronic tape with a &#34;socket&#34; to a plug on the back of the screen. It is doable but quite difficult to clip into the screen part.After mounting I made my final big mistake.
Probably the most distinctive feature on this device is that it  records pictures and video to a removable micro SD card which youcan view on a computer. There is no internal memory for recording pictures and video so you must purchase the card elsewhere. It will support a card up to 32G (which is probably overkill).
Answer: yes