My sister-in-law gave us two wireless cameras with a receiver connected to our TV. It works to show the video on TV, no audio and no event recording that is when someone comes in our front door and that's just it. No records or notification of anything and must be home to watch it. It must be an old system. I joined this forum in the hope of learning more about security cameras, what to do and what to buy. I like to be a smart buyer buying only what is reliable and reasonable which record events, viewable when I am not home, push notification for alarms on my iphone, Remote viewing where ever I am, two way audio, etc... I am still a newbie learning what I can put together as DIY. My wife installed a Ring doorbell that triggered my interest to know more and want to have a better and more flexible system. Thanks for allowing me to be a member of this forum. God bless..