2 to 5 business days
Microphone and Speaker: Sometimes just having a camera is not enough. Sometimes you need to communicate with someone who is on the other end, but they do not necessarily have their phone on them, or maybe they do not have a phone at all. An example might by you see someone running with scissors, so you need to tell them not to run with scissors. Or maybe you are trying to guide someone through a cooking recipe. Either way, it is probably a safe bet to get CCTV panoramic cameras that have a two-way speaker.