Dropcam HD Wi-Fi Wireless Video Monitoring Camera
This is a great, secure way to set up a wireless webcam for remote viewing and recording. It's one of the easiest systems to set up, and you just need to pick the right wireless network for it during setup. It does require an external power source, but otherwise connects wirelessly to your network. Once set up, it can capture video and audio constantly, so that you can view it at any time from a computer, phone, or tablet device. It has 2-way audio, so you can hear through it and talk back to people while it captures video. There are even remote zoom and pan controls that you can use to adjust the video while viewing it, and you can set it up to contact you with alerts under certain conditions.