Item Type: WiFi Video Doorbell Material: ABS Model: M6 Use: Household Colour: Gray Battery: 2 x 18650 lithium batteries (not included) Plug Voltage: 90-260V Viewing Angle: 166 degrees Signal to Noise Ratio: ≥39db Infrared Lights: 6 infrared lights, night vision distance of 5-10 meters WiFi: 2.4GHZ 802.11 b/g/n Storage: Maximum support 32GB memory card (not included) Audio: Two way audio with aftersound cancellation Motion Detection: Support Use APP: for Ubox Bell Working Frequency: 433MHZ Output Power: 0.15W Standby Power: ≤10mW Sensitivity: -112dbmm Volume: Maximum 100 decibels 1、WiFi Wireless Connection: 2.4GHz WiFi connection, stable signal, no need of wiring, easy and fast to install, convenient for using. 2、Real Time Monitoring: Support real time monitoring on mobile phones, even if you are away from home, you can actively wake up monitoring anytime and anywhere. 3、Infrared Night Vision: Adopt intelligent infrared recognition, it will automatically switch to night vision mode when the light is insufficient. 4、Human Body Induction: 24 hours to automatically sense abnormalities, take snapshots and recording, and push abnormal messages to the mobile phone at the same time. 5、Wide Angle Lens: 166 degree super wide angle lens, avoid blind spots, blind spots, ideal to monitor outside door, courtyards, corridors, aisles, etc. 6、2 Way Audio: Supports two way audio, allows you to talk to your visitors, and with aftersound cancellation, ensures clear sound quality. 1 x Doorphone 1 x Door Bell 1 x Fixing Plate 5 x Screws 4 x Expansion Tubes 1 x Small Hex Wrench 2 x Wires 2 x Manual 1 x Double Sided Tape