Product features: 
<br />RTOS operating system, ultralow consumption design, if everyday use 10 times,the machine can use more than 8 months. 
<br />Automatic take a picture when visitor press doorbell 
<br />Easy installation(no need any cable), just wifi connection, wired installation optional 
<br />App support iphone Android, support two-way speaker function 
<br />The newest design case-weatherproof 
<br />A doorbell can be connected to multiple mobile devices at the same time(unlimited), the maximum number of simultaneous calls is 4. 
<br />A week cloud storage: Photos taken by doorbells will automatically be uploaded to the cloud, which will automatically cover the old content over a week later 
<br />Specifications: 
<br />Product name: Wireless Intelligent visual doorbell 
<br />Product size: 12.5 X 6.5 X 2.3cm 
<br />Product net weight: 230g 
<br />Storage: Built-in storage(8GB)/mobile phone store 
<br />Operating system: RTOS real-time operating system 
<br />The outer ding-dong: Support 
<br />Reset: Hidden reset switch 
<br />Communication mode: Wifi 802.11 b/g 
<br />Switch: Doorbell 
<br />USB: MICRO USB 
<br />Battery: 3000mA built-in lithium battery 
<br />Camera: 1 million pixel/720P 
<br />Visual Angle: 120 degree 
<br />Night Vision: infrared lamp/4 lights 
<br />Alarm: PIR/Adjustable sensitivity 
<br />Walkie Talkie: Support phone remote intercom 
<br />Color: gold / silver 
<br />Installation: wall hanging 
<br />Max Power Dissipation: 350mA 
<br />Standby power dissipation: 10uA(PIR function closed) 
<br />Tamper device: Support 
<br />External dimension: 12.6 X 6.8 X 2.8cm 
<br />Mobile phone software: Support Android, Apple operating system(ding bell)