Main Features Pay attention: ac owns a multilingual firmware, supports English, Spanish, French, Korea, Japanese, Portuguese P2P, free app "TSee", no need to do complex network setting, Plug and Play, break through the network limits. SAC uses 11 infrared LEDs to record video. 350 degrees pan, 100 degrees tilt. Automatically cruise. Built-in microphone, provide audio input, output joints; Preformed a loudspeaker joint. M-JPEG algorithm, VGA/QVGA/QQVGA three optional video resolutions, you can setup the parameters, suit for various view requirements. Wifi function, support 802.11b/g/n protocol. Support motion detection, send alarm information via email and FTP. Three levels of users authority settings; Mobile viewing, free app, TSee, and supports standard browsers. Through external alarm device, the alarm information can be sent to your email. It will also be sent to the alarm server, achieve multiple alarm linkages Upnp functions, it can penetrate router without any configuration of the router. If your router does not have this function, it's not a problem, DMZ, just enter the internal ip address. Remote firmware upgrade;[upgraded firmware will be published regularly in SAC official forum Domain name, for each device, you can use the domain name to view over the Internet (instead of enter IP address+port number) Support to set preset positions SAC provides an account to manage all SAC devices' performances Multi-channel display, SAC provides a free centralized monitoring software CMS, supports 100 screens viewing from different places, long time recording, video playback and other functions Please Note: ad4 message alarm, now only supports the cell number of China Telecom, China Mobile, China Unicom. If you're interested in our products, feel free to contact us, contact our Trade Manager: cn1510100781 or leave us a message, waiting for your inquiry!