Philips PC Camera SIC4750/27 Review

I purchased a Philips Webcam to keep in touch better with the grand kids, the camera seems to work fine, but I and the kids on the other end have had difficulty with the Microphone. 

The Webcam itself was easy to install, with minimal headaches.  I think with some diligent effort this problem with the microphone can be worked out, but for someone who has no technical knowledge it would cause them great strife.  I have checked Phillips Website and it is difficult to find anything about this cam, and gives no troubleshooting information.