Feature:1. Intelligent infrared recognition, will automatically switch the night vision mode when the light is insufficient, so that you can see any abnormalities outside the door at night, and monitor the safety of the whole family.2. WiFi connection, 24 hours automatic detection of abnormalities and capture and video (requires storage device) and push abnormal messages to the mobile phone to remind at the same time.3. Built with highquality shell, unique design, easy installation, onebutton start has never been easier. 50m/54.7yd strong penetration, no longer have to worry about not receiving the signal or no sound.4. Support mobile phone realtime monitoring, even if you are away from home, actively wake up monitoring anytime and anywhere, master the dynamics with one hand, so that you will not miss any screens.5. WiFi wireless connection does not require wiring, the doorbell is equipped with a battery and the signal is stable. The 166 lens has twice the field of view, and the corners of the door, yard, corridor, aisle are clear.6. Support two way intercom, support infrared night vision, distance up to 10m/11yd, can realize intelligent linkage with other products that support for TUYA. Visiting guests can make video voice calls and a short video recording, the host can know the incoming without oprning the door.7. Adopt powerful, highperformance programmable media Hi3518E, builtin ARM926 at Max.440MHz and highspeed video coprocessor. Support automatic white balance, automatic gain control, and automatic backlight compensation.8. With HiSilicon liteos lowpower solution, IR turns on the night vision function, infrared and ICR are automatically detected; IR turns off the night vision function and disables the infrared normally off, ICR is fixed in the day vision mode.Specification:Item Type: Smart DoorbellMaterial: ABS PlasticVoltage: 100-240VSize: Approx. 141.5x 45.5x32.4mm/5.6x1.8x1.3in(Length x Width x Thickness)Wake-up mode: Doorbell Button Wake-up, PIR Human Body Detection Wake-up, Mobile Phone Active Wake-upAlarm Push: Push Quickly Within 1 SecondNumber of Online Users: Multiple Users at the Same TimeDynamic Domain Name: With Own Dynamic Domain NameSignal to Noise Ratio: 39dBLens/Viewing Angle: Lens Angle 166Night Vision: Automatic Switching of Dual Filters, Approx. 6pcs 850nm28Mil High-Power Infrared Lamps, Night Vision Approx. 10m/11ydCompression standard: H.264 Main Profile/H.264 Baseline Profile/MJPEG/JPEG BaselineResolution: 1920x1080Code Rate: CBR/VBROutput Code Rate Range:128-4096kbpsInput: 1 x Built-in -48dB MicrophoneOutput: Built-in speaker (81W)Intercom: Two Way Voice Intercom with Echo CancellationCompression Standard/Bit Rate: ADPCM/32kbpsNetwork Protocol: TCP/IP, HTTP, TCP, UDP, SMTP, FTP, DHCP, DNS, DDNS, NTP, UPnP, RTSP, P2P, etc.Wireless Network: 802.11b/g/nWireless Network Security: WPS Security EncryptionWireless Connection: WIFI Configuration with One ClickVideo Mode: Motion Detection Video, Doorbell Button Trigger Video, Manual VideoStorage: Memory Card Storage(NOT Included), Support up to 32GPower Supply Mode: Battery Powered 2pcs 18650 Batteries (Not Included) InternationallyWorking Temperature: -10-50Working Humidity: <95%Power Consumption: Standby Current 120A, Working Current 170mAInstallation Method: Wall-MountedHow to Use:After the doorbell is installed, you can download the APP with your mobile phone, use WiFi to connect to the doorbell, and then use the APP to use other functions. The buzzer can also be connected to the doorbell when plugged in..Package List:1 x Doorbell Host 1 x Buzzer1 x Small Wrench1 x Screw Installation Package1 x Sticky Board 1 x Doorbell Fixing PlateNote:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.