Master Monitor Station - The JF-2MED is a hands-free, color video master monitor that allows the connection of up to two video door stations and 2 additional sub monitors. The unit features a 3-1/2" TFT color monitor, a TALK button for PTT or VOX activate communication, a door release button, call-in LED's, door chime and communication volume controls and brightness control. The unit features a built-in picture memory unit that records up to 400 images of visitors. The voice memo feature on the JF-2MED allows users to record up to three ten second messages for replay later.