Feature: 1. MULTI FUNCTIONAL: Easy to use with 7inch color LCD indoor display and stylish touch buttons. Outdoor doorbell with HD camera, 120 degree wide angle, 1/4 HD CMCS, infrared night vision, rain and damage resistant design. 2. CONVENIENT CONVERSATION: See and talk to anyone at your door when the call button is pressed on the outdoor unit. Unlock the door safely and conveniently from inside your home. 3. ENHANCED SAFETY: Enhance your home's security with the IC card and indoor machine unlock feature. This allows control over the electric lock, plug lock, and electromagnetic lock, providing an added layer of guard and convenience for the homeowner. 4. NIGHT VISION: With the 6 built in IR LEDs, the infrared night vision outdoor camera provides a clear view regardless of the time of day. Ensuring constant visibility increases safety and gives homeowners peace of mind. 5. FUNCTIONAL AND VERSATILE: This intercom system offers various doorbell ringing, adjustable volume, brightness, contrast, infrared night vision, electric lock control, automatic shutdown. Suitable for villas, homes, offices, buildings, etc. Specification: Item Type: Wired Video Intercom System Camera Parameters: Lens: 1/4 HD CMCS Resolution: 800 lines Illumination: 0.02lx Light Source: 6 IR LED Power Supply: from Display Display Parameters: Screen: 7inch Resolution: 800x480 Voltage: DC15V 2A Video Input: 1Vp-p 75 Ohm Ringtones: 16x4 melodies Display Time: Intercom 60s and Display 30s Power Consumption: Standby 0.2W, Working 8W Connection Method: 4 Wire Installation: Wall Mount Frequency: 50 60HZ . Package List: 1 x Outdoor Unit 2 x Indoor Units 13 x Screws 12 x Expansion Tubes 1 x Gasket 6 x Connecting Cables 2 x Adapters 1 x Instruction Manual