Buy from Amazon : http://www.amazon.com/gp/product/B00DJ826V6?tag=izanami-20

Revo R164D8EM21-2T 16-Channel 2TB DVR Surveillance System with 8 600TVL 80-Feet Night Vision

Connection type 12 RJ12 and 4 BNC ports
Cameras have a built in microphone for audio monitoring capability
View and access live and recorded video remotely over the internet or mobile phone
Cameras lens 36mm Resolution 600 TV lines
Hard Drive 2TB LED lighting distance max 80ft