[Video Call]Easy to deal with visiting guests, when someone presses the doorbell, the doorbell will push notification to the phone, and the owner can enter the phone video conversation interface, which supports sharing to up to 10 members at the same time. [Capture screen]Storage to the cloud, security protection drip. When a visitor presses the doorbell, it can capture the visitor's picture and save the record to the cloud, so that the cell phone APP can view the past pictures at any time, which is and more secure. [Voice Change]Voice change function, easy to deal with unfamiliar visitors! Upgrade change function, when you are alone , you can use change intercom function. Support voice, male 2 voice modes can be . [Portable Installation]Can be pasted and perforated. Support adhesive backing, no need to punch holes, while supporting hole punch installation. No plugging, convenient and hassle-free. [Long Standby]No disassembly cycle charging. Built-in lithium-ion high-capacity battery, standby 365 days Say goodbye to the trouble of frequent battery replacement. Product Name: Smart Video Doorbell Model: X3 Maximum resolution: VGA 640*480 Video coding standard: MJEPG Video frame rate: VGA/20FPS Video preview: support 1 channel P2P Video transmission encryption: support Photosensitive: support automatic day and night switching mode Infrared drive: maximum 50MA Infrared lights: 4 infrared lights Audio coding standard: G711.A Audio input: 1 channel Audio output: 1 channel SD card holder: not supported 1 button: doorbell + reset Indicator light: 1 Accompanied sound collection: support Infrared light wavelength: 850NM Network distribution : Bluetooth distribution network Cloud storage: support, three days of circulating cloud storage are given by default Connection : 2.4GHZ WIFI Power supply mode: battery powered Battery interface: Firmware upgrade: support remote upgrade Operating temperature: -10C - +45C Working humidity: less than or equal to 90% Charging power supply: 5V Dingdong RF code: EV1527 3 Ding- buttons: code button, volume button, ringtone button Ding- interface: USB Charging power supply: 5V APP: X smart home color:White Material:ABS Package Contents: 1 x Doorbell 1 x Ding 1 x USB Cable 1 x Adhesive Paper 1 x Screw Case 1 x Chinese and English manual Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.