1byone Video Doorphone 2-Wires Video Intercom System 7-inch Color Monitor and HD Camera Video Doorbell with 49ft Cable, Surface Mounted Outdoor Doorbell Security through Vision - The wall-mounted 7-inch color monitor and outdoor doorbell with integrated HD camera ensures you can both see and speak with all visitors. Durable Construction - The Outdoor doorbell is constructed using a full aluminum front panel for protection from vandalism, while waterproofing protects from the elements. IR (infrared) LED projection provides clear vision of visitors even in the darkness of night. Save Videos and Photos - Videos and photos taken from the outdoor doorbell can be stored on an inserted SD cards or the monitors internal memory for later viewing. (Note: Saving video requires an SD card, up to 32gb, a 1G SD card included) Easy installation: Easy 2-wire setup system includes installation materials and 49-foot (15-meter) connection cable. Lock Control - Control up to 2 electric door/gate locks directly from the color monitor for even further security and convenience.