A:AnswerYes i have all the models as long you have room on sync module you be good the sync module hold up to 10 cameras so if you dt have that many you can.
A:AnswerYes. I installed two 5 camera systems at a large home with several outbuildings, a pool and pond. Each sync module was connected to WiFi and each was given a unique name. The Blink app allows you to select each system independently..
A:AnswerIt is really going to depend on the surface that you are mounting it to. Remember, heat or cold will have an effect on how well the adhesive works too.
A:AnswerYes, the cameras have audio capability, but you can mute that feature if you want. It picks up all the sounds around it very well. You can even have recording trigger on the basis of sound.