Features: Two million 1080P HD pixels with 166 degree wide-angle lens, give you a broader, clearer and more delicate image. Support user management and 4 screen playing at the same time, you can share the images with your families. Support voice intercom, infrared sensor alarm, video and photo capture. With low power reminder, low power consumption and long life-span. Support PIR motion detection wake-up. Message pushing within 1 second. Day and night mode automatic switching, whether day or night, the image is clearly visible, for your safety and family security. Support two-way audio intercom function, you can communicate with visitors clearly. Support cloud storage and storage capacity up to 32G. Support for Amazon Alexa/for Google Home. Specification: Condition: 100% Brand New Material: ABS Color: Black Main control chip: Hi3518E Image sensor: 1/3 CMOS Video: 1920*1080, H.264, Code rate adaptation, adapt to multiple network environments Viewing angle: 166°(Diagonal) Day and night function: IR-CUT dual filter automatic switching Infrared light: 6 * LED 850mm Photosensitive sensitivity: 1 Lux Wi-Fi: 2.4GHz, IEEE 802.11 b/g/n Storage: Support cloud storage and device memory card 8G/16G/32G Video recording: support mobile phone local recording, video on demand playback Screenshot: mobile phone real-time screenshot Wake-up mode: Device button, PIR detection, mobile phone remote active wake-up Quick start: system startup within milliseconds Message pushing: within 1S Motion detection: PIR motion detection, high /medium /low sensitivity (3 levels adjustable) Battery: 2 * 3.7V (Not Included) Power consumption: Standby current is 160uA, operating current is 170mA Supported Version: For Android apk:only supports for Android 4.4 and above For IOS apk: only supports for IOS operating system of IOS9.0 and above Package list: 1 * Doorbell 1 * User Manual 7 * Screw 4 * Expansion Tube 1 * Double Side Sticker 1 * Small Wrench 1、Two million 1080P HD pixels with 166 degree wide-angle lens, give you a broader, clearer and more delicate image. 2、Support user management and 4 screen playing at the same time, you can share the images with your families. 3、Support voice intercom, infrared sensor alarm, video and photo capture.Support PIR motion detection wake-up. 4、Support two-way audio intercom function, you can communicate with visitors clearly. 5、Day and night mode automatic switching, whether day or night, the image is clearly visible, for your safety and family security.