What type of microphone can we connect to the DVR for audio recording?

Most DVR cameras do not have a built-in microphone. Here are the camera models that do: PRO cameras with built-in microphones: Which DVR is compatible

If your camera has no built-in microphone, you need a self-powered microphone (has its own power adapter) that can be connected to the AUDIO IN of the DVR via RCA connection. You can check the links below as a reference of the microphone known to work with DVR recorders for audio recording:

• Amazon.com: VideoSecu High Sensitive Preamp Microphone Audio Pickup Device Sound Voice Pickup Kit with 100 Feet Cable and Power Supply WUH : Musical Instruments
• Amazon.com: Tonton High Sensitive Weatherproof Preamp Microphone Audio Pickup Device Sound Voice Pickup Kit with 60 Feet Cable and Power Supply for CCTV Surveillance Camera System : Electronics

A lavaliere or lapel microphone is not compatible due to its audio range.

DISCLAIMER: The recommended items or sellers are not connected to Swann in any way. You are free to use any microphone that is compatible with your recorder.