... 4.Free Provide DDNS 2011 best sale Wireless IP Camera with PTZ, Alarm and MicrophoneSupport SD Card Mode:ZS-M52SHWIA ... iOS,Android OS,Symbian OS,WindowsPhone7) Support Mac and windows pcMobile PlatformNo need to install software, Multi-screen ... -channel , no user limited , centralized monitor, remote record and playback , Skype message alarm, skype telephone alarmSystemOperation systemEmbedded Linux ...