There are 3 different packages for your choice. If you buy the indoor monitor only, or outdoor camera only, we can't guarantee if ours can work with yours.         Package A (Camera ONLY): Including outdoor camera Only. Not including indoor monitor and 5 meter cable.    Package B (Monitor ONLY): Including indoor monitor Only. Not including outdoor camera and 5 meter cable.    Package C (With One Monitor): Including outdoor camera + 1 unit indoor monitor + One 5 meters cable.         One outdoor Camera can work with max 6pcs indoor monitors, if you want more indoor monitor, you can buy Package C + Package B (if you have any questions, welcome to contact us)         4.3 inch Video Door Phone Intercom System    700TVL Outdoor unit ( Camera)     4.3 inch Indoor unit (Monitor)                      Product Details          The distance between the camear and monitor is up to 100 Meter    The max distandance is up to 100 meters. Different distance, use different diameter cable, please check the following from to choose correspnding cable.     ( If you buy both the camera and monitor, we will supply one 5 meters cable to test our products. You can buy more longer cable in your local place when install it.)                       Multiple ringtones - free switch    The 25 chord ringtones can be switched freely, elegantly and fair-sounding. Both of the ringtones and volume can be adjustable, can meet the original needs of your time. Don't need to worry about can't hear voice or hear it too loud any more.                   Support Two-way radio intercom and indoor monitoring    When a visitor ring the bell, the monitor will be activated and show the image outside. Press the answer button, then you can talk to outside, press the answer button again to turn it off. If you do not press the button after conversation is finished or if no one answer the call, the monitor will turn off automatically after 60s.                   Support Two-way Audio and Ringback function    One camera can working with 6pcs indoor monitors. One monitor can working with 2 cameras. The camera can talk with the monitor. The monitor can talk with one of the monitor too. (If you want more camera or monitor, please contact us.)                  Support IR Night Vision    The outdoor camera build-in 4 white LED light. With this function, you can see outside no matter day or night.    Keep your house more safer.               Induction white light effect                                         IR infrared night vision effect                                   without night vision effect    (coloured picture, the nigh                           vision effect is the best)         Waterproof and dustproof    The outdoor camera equip with a weatherproof cover,    can be used outside even in very bad weather.