I am offering 7 cameras with a receiver and a receiver drawer. Company / Hikvision Records for approximately a month and a half or more. All work on one device. You can connect them to a TV screen, computer, or link them to your phone via the app. You can also add more cameras to the same device. The cameras: 3 outdoor (image) with high-definition zoom capability. 3 indoor (image) high-definition. 1 (audio and video) high-definition. All support night vision. Receiver drawer with cooling feature via an internal fan.