1、High Definition Picture Quality: Video intercom doorbell has 1080P resolution, providing a clear and detailed picture, so you can clearly observe what's going on outside the door. 2、PIR Motion Sensor: Video intercom doorbell is equipped with a PIR motion sensor, which is able to accurately detect the dynamics outside the door to improve security. 3、Infrared Night Vision Lamps: Built in two infrared lamps with a wavelength of 850nm, providing effective infrared fill light at night, so that you can clearly see the situation outside the door in the dark. 4、Remote Monitoring: Supports remote monitoring function, watch the screen outside the door anytime and anywhere through mobile APP to keep your home safe, and supports dual way call, you can have real time intercom with the person outside the door, more convenient to communicate with visitors. 5、2.4G 5G Dual band WiFi: Smart doorbell supports 2.4G and 5G dual band WiFi connection, which is more stable and faster signal transmission, providing a smoother remote monitoring experience. 6、Multiple Visitors Online: Smart doorbell supports up to 5 people to watch the situation outside the door online at the same time, which is convenient to share the monitoring with your family. Item Type: Smart Video Doorbell Material: ABS Resolution: 1080P Motion Sensor: PIR Detection Range: Approx. 10m/32.8ft Sensitivity: High, Medium, Low for Selection Viewing Angle: DxHxV 135 Degree x 114 Degree x 88 Degree IR Night Vision Lamp: 2 IR Lamps, 7m/23.0ft (Wavelength 850nm) WiFi: 2.4G 5G Dual Frequency Microphone: Full Duplex Sensitivity: ≥ -38±3dbm Speaker: Built In 8Ω 1W Reverb Cancellation: Support Two Way Call: Support Remote Monitoring: Support Power Failure Memory: Support APP Application Platform: for Doodle Intelligence Support Simultaneous Online Visitors: Maximum 5 People Online at the Same Time Storage: Maximum Support 128GB Memory Card (Not Included) Battery Type: Built In 2 x 9600mAh 21700 Polymer Lithium Battery Standby Endurance: About 120 Days (Based on Waking up 10 Times a Day) 1 x Doorbell 1 x Base 1 x Patch 1 x Ding Dong Machine 1 x Instruction Manual 2 x Screwdriver 1 x Hex Wrench 4 x Connection Cable 1 x Data Cable 13 x Screw 4 x Screw Sleeve 2 x Nut