Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: May i use this cam outside my house???
Document: (For most home users, the IP address can be changed regularly by the ISP, so isn't a good way to identify the device.) The web address appears to be specific to the camera (e.g. usXXXXX.mytenvis). Use of this service requires that port forwarding be setup on your wireless router, which may be a little tricky. (I discovered that the iPhone app works seamlessly from outside the local network.
I recently bought this camera to serve as a sort of baby cam so that I can check on my newborn daughter while at work. I have to say that this camera was  very easy to set up by following the instructions. In about 5 minutes after plugging the camera in, I was able to use it over my home network and over the internet with no problems. I did have to forward a port to access the camera from outside my home network but this is simple to do by logging into my router.
Camera is great actually. The picture quality is good and the night vision is great. If you are to use this indoors, then it is the perfect camera. I used to take some surveillance video in front of my house. It worked great and it was easy to record. The motion sensor does not work well outside, at least not from a great distance. Indoors it works perfectly. The e-mail alarm works as advertised.
As it is, I may get two more to place in other locations of my house.
I just installed the JPT3815W, which was very easy to do. I installed the camera to keep an eye on the two puppies we have running around the house. Had a little trouble setting up the 4G on my IPhone, but once connected, it works great. Now I can watch to puppies tear up the house and know which one the trouble maker is. May decide on a second one in the future.
The only reason I'm not leaving a 5-star rating is because the camera was a bit difficult to setup and I'm an IT Technician. The hardest part was configuring the IP config because my router has an odd IP address range. It may not be an issue others would experience so I don't believe it's a problem with the camera. But Excellent Night vision and works really really well! I also would recommend "IP Cam Viewer Pro" for iOS devices.
I was looking for an inexpensive way to monitor my house while away and this product exceeds my expectations. While the setup can be challenging, the Tenvis technical support was very prompt! This product allows me to monitor my house (and pets) where ever I may be through either 3G access from my smartphone (either android or iphone)  or internet access. The Pan and Tilt functionality of this camera allows me to monitor my entire living room with just one camera.
It seems working fine with my local internet. I have set portforwarding but unable to see my cam from outside world. I have followed instruction correctly. Checked firewall. enable and disable DMZ no luck. but overall cam is fine. Thanks
Awsome ip cam,  even though getting it to work outside of your wifi is almost impossible and the instructions are sometimes hard to understand. The product it self is just right. less than 50 bucks to have a motion, night vision, and a nice stand  not too bad.
Fine camcorder...moves and works well with my android ip cam viewer. I had to manually set the port forwarding on my router to workcorrectly, outside of the instruction manual if you encounter this problem, easy instructions are obtained through youtube. under tenvis setup. the manual will not specify this. Very pleased with this purchase.
Answer: It's not waterproof. You could only use it outside if it was completely protected from the rain .