• PIR Motion Detection: Advanced PIR body motion detection for added security
• Infrared Night Vision: Clear visibility even in low-light conditions
• Two-Way Duplex Communication: Effortlessly communicate with visitors
• Tamper Alarm: Alerts you in case of tampering or removal
• High-Definition Clarity: Enjoy crisp 1080P HD resolution for crystal-clear video

Specifications: 

• Material: ABS
• Transmitter Dimensions: 41 x 60 x 135mm
• Receiver Dimensions: 75.9 x 75mm
• Doorbell Battery: Built-in 5200mAh polymer battery (2 cells)
• Ding-Dong: Removable 18650 battery
• External Power: MICRO USB 5V 2A
• Communication Protocols: TCP/IP, HTTP, DHCP, DNS
• Wireless Network: Supports 2.4GWIFI IEEE802.11b/g/n
• Protection Level: IP55
• RF Frequency: 433MHz
• Sensor Type: 1/3" CMOS
• Pixels: 2MP
• Shutter Speed: 1/25~1/100000 seconds
• Video Compression: H.264/H.265
• Output Bitrate: 32Kbps~2Mbps
• Maximum Pixels: 1920×1080
• Storage Methods: TF card, supports up to 128GB (not included), and cloud storage
• Image Settings: Supports high definition/standard definition, supports mirroring
• Reset: Supported