The Outdoor doorbell is constructed with a full aluminum front panel for protection from vandalism, while waterproofing protects from the rain or snow. There are 36 chimes with 3 levels of adjustable ringing volume(High/Medium/Low) from 25-110 dB, you can choose what you like.

Please press the melody seletor button on the receiver to choose a ringtone and then press the code pairing button to confirm it and press the push button. Easy Installation - The chiming receiver unit can be free standing or wall mounted using the included hardware. Yes, you have to open up the remote and on the back plate, you need to drill the hole for the screw.It might have been interfered by other similar Doorbell nearby, just reset the code as instructed in the User Manual. Each receiver can work with up to 5 additional push buttons, it can be configured with different tones, so it is convenient for you to distinguish which door the visitors will enter from.

Security Through Vision - The indoor 7-inch color monitor and outdoor doorbell with integrated HD video camera ensures you can both see and speak with all visitors.There are 36 chimes with 6 levels of adjustable ringing volume (High / Medium / Low) from 25-110 dB, you can choose anyone you like. If you want an additional doorbell to work with the Receiver, just press the auto-learning code button once and the doorbell can work with the Receiver. Each push button can also be paired with multiple receivers to increase the notification coverage area.