door phone ,door phone system ,SAVM1-7W (1)Made in China (2)7inch Color TFT (3)Hand free (4)FCC approved

door phone ,door phone system ,SAVM1-7W(1)Made in China (2)7inch Color TFT (3)Hand free  (4)FCC approved

Hand-free ;Ultrathin Design;aluminum alloy case                                                               Function:Visitor calling, video intercom, unlock, monitor.                                                                                                  Two monitor to one camera is optional  .                                                                              Specification:Power supply: DC 13.5V  0.5Screen: 7 inch TFT LCDAudio Distortion Power≥50MWInput Voltage:DC15V±10% Frequency Response:3003400HZ±3DB Current: Static Current<50mA ,Dynamic current:<400mAOperation Temperature:-10  to50Installation:Surface-mountConnection: four  wire connection for polarity