hello,we can offer replacement rubber feet,please contact us via customer@kentfaith.com. 

Please contact our customer service for replacement and support. 

You can flip the angle part around to the angle your want. 

Yes, our indoor wifi camera comes with two different ways to mount on the wall. the box comes with a double sided tape you can stick the camera on a surface. Or you can use the two screws that came with the box to hook up the camera on a wall. 

The V50x comes with a skeleton case with a slotted rear door replacement, but there is no opening to allow plugging in an external mic. As a note, the sound recording, even while in the completely waterproof case, is better than I had expected. If you're not worried about moisture, there is a threaded tripod mount on the bottom of the camera and an adapter that will allow you mount the camera without using the case.