Feature: 1. Phone Realtime Monitoring: Even if you are away from home, actively wake up monitoring anytime, anywhere, so that you will not miss any screen. 2. Human Body Induction: Abnormal reminder, 24 hours automatic detection of abnormalities, capture and video, and push abnormal messages to the mobile phone at the same time. 3. Infrared HD Night Vision: Using intelligent infrared recognition, will automatically switch the night vision mode when the light is insufficient, so that you can see the abnormalities outside the door at night. 4. Wide Angle: The 166& 8209;degree super wide& 8209;angle lens, double the field of view, the corners of the door/yard/corridor/aisle are clear at a glance, and the safety of the whole family is guarded. 5. Wireless Connection: Wi& 8209;Fi wireless connection, no wiring, the doorbell is installed with a battery to connect to the Wi& 8209;Fi, the signal is stable. 6. Two Way Intercom: Support two& 8209;way voice calls, high& 8209;definition video two& 8209;way intercom, zero& 8209;distance communication. Specification: Item Type: Video Doorbell Material: ABS Use: Household Color: Golden Plug Voltage: 90-260V Battery: 2pcs 18650 battery (without battery) Viewing Angle: 166 degrees Signal to Noise Ratio: ≥39db Infrared Light: 6pcs infrared light, night vision distance approx. 5-10m/ 16.4-32.81ft WiFi: 2.4GHZ 802.11 b/g/n Storage: Maximum support 32Gb memory card (card not included) o: Two-way conversation Motion Detection: Support Dingdong Working Frequency: 433MHZ Output Power: 0.15W Standby Power: ≤10mW Sensitivity: -112dbmm Volume: Maximum 100dB Use APP: For Ubox Package List: 1 x Doorbell 1 x Ding Dong 1 x Fixed Plate 5 x Screw 4 x Expansion Tube 1 x Small Hexagon Wrench 2 x Connecting Wire 2 x Manual 1 x Double-Sided Adhesive Sticker