Panasonic Intercom 421-422 Set: VL-V566, VL-MV19 - Model Numbers: VL-V566-S (Exterior Unit) VL-MV19K (Monitor Unit) - Functionality: Tested and confirmed working. All buttons, sound, image, and power are functioning. - Condition: See photos. Dust and dirt have been wiped off. - Accessories: All items shown in the photos, power cord, and 4 screws. - Shipping: Wrapped in bubble wrap, within 24 hours. - Returns and exchanges accepted. Individual sales are possible. Please see the dedicated page for individual sales. We aim to provide a worry-free purchase for our customers. Thank you for your interest. Installation Manual: https://dl-ctlg.panasonic.com/manual/2006/vl_sw100mk_kouji.pdf Monitor Unit and Camera Exterior Unit Compatibility Chart: https://jpn.faq.panasonic.com/euf/assets/images/panasonic/answer_images/doormoni/genkoki.pdf #Panasonic #Aiphone #Seco #Nasta #Intercom #Interphone #Video Door Phone