The JF-2HD is the sub monitor for the JF expanded series hands-free color video series. The unit connects to a master JF-2MD and an additional JF-2HD sub monitor (or JF-2SD audio only sub). 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 JF series has a built in picture memory feature that can be set to record automatically when the visitor calls, or the record can be done manually by the user. Up to 50 images can be recorded at a rate of 1 frame per second and 8 frames per image (400 total frames). Up to 10 images (80 frames) can be saved and protected from automatic overwriting. An outgoing message can be pre-recorded at the JF-2MED master to be sent to the door station for instances when you can’t, or don’t want to use your voice to answer a visitor. Up to two pre-recorded messages can be saved. These can be played after identifying a visitor and must be manually selected by the user. This is not an automatic message sent when the visitor calls.