Never answer the door without seeing who's there first. This is a very nice Wireless WIFI Doorbell with Indoor Ding-Dong - Visual Intercom Supports Voice Control for Amazon Alexa/Echo and for Google Home - PIR Motion Detection Phone APP Remote Control Two-way Voice Built-in 8G TF Card, Dark Gray
*Megapixels CMOS sensor, HD 720P clear video with 166° viewing angle, display the details in front of your door.
*Support PIR motion detection, two-way intercom with noise cancellation, support TF card up to 32G(not included), built-in 8G TF card.
*Voice Control: Support voice control for Amazon Alexa/Echo&for Google Home.
*Equipped with 1*indoor Ding-Dong doorbell, when someone touches the doorbell outdoor, the indoor ding-dong doorbell receiver will ring and remind the host to open the door.
*Support 2-way audio communication, answer your door wherever you are, support night vision, camera covers wide viewing angle.
*Exquisite design, one press the push button(outdoor unit), immediate notifications pushed to your mobile phone.
Image Sensor: 1/4'' CMOS
Pixels: 1.0MP megapixels
Record Resolution: 720P
Two-way Audio: Support (Built-in speaker and Mic)
Movement Detection: PIR Motion Sensor
Viewing Angle: 166°
IR LED: 6pcs
Infrared Night Vision Distance: 10-15m
WiFi Connection: WiFi 2.4GHz IEEE802.11b/g/n
Support System: for Android/iOS
Colour: Dark Gray
TF/SD Card: Support 8G/16G/32G(not included),built-in 8G TF card
Power Consumption: Working 170mA, Standby 160μA
Power Supply: USB/2*18650(both not included)
Outdoor Doorbell Size: Approx.14.3*7.5*3cm
Outdoor Doorbell Weight: Approx.174g
Receiver voltage: 110V-260V (wide voltage)
Operating frequency: 433.92Hz
Working temperature: -30℃~+70℃
Receiver size: Approx.7*4.6*4.5cm
Receiver weight: Approx.52g
Package Size: Approx.20.3*16.7*9.1cm/7.99*6.57*3.58in
Package Weight: Approx.550g/1.21lb
1* Outdoor Doorbell
1* US Indoor Dingdong Doorbell
2* Bag of Mounting Screws
2* User Manual(English)
Shipping can take between 2 and 4 weeks on average.