Using your Alarm.com ADC-VDB770-BZ video doorbell camera is easy. First, install it with the provided mounting hardware. Make sure it's connected to an existing doorbell transformer with the right voltage (16 - 30VAC, 10VA). Then, download the mobile app and follow the instructions to pair the camera. You can view live video and saved clips on the app, and use the two - way audio to talk to visitors. For best results, place the camera where it has a clear view of the doorway. Keep in mind that while the camera has great night vision, very low - light conditions might affect the image quality a bit. When it comes to maintenance, check the battery regularly, especially in cold weather. The built - in battery heater helps in low temperatures, but a well - charged battery is still important. If you encounter any issues, refer to the quick - start guide that came in the package. Enjoy your enhanced home security with this great doorbell camera!