... video, intercom, unlock, infrared night visionfunction! 1. outdoor temperature feature: before going out in the morning, ... slight press, visible,press again, automatically unlockThis system can be used in apartments,villas,hotels,offices, ... on the desk,tea table,dining table etc. Outdoor Camera * Night Vision * 2.4GHz Transceiver * ... Wireless video doorphone doorbell Intercom System 1 V more more V 1