MINI Speed Dome IP Camera, 1.H.264,Dual stream,480 tvl SONY CCD 2. two way audio, 3. ... Indoor IR Led MINI Speed Dome IP Camera,H.264,Dual stream,2-way audio,480 tvl 1/4 SONY CCD ... =3.9-39.0mmVideoCompression FormatH.264 main profile level 3,Dual StreamSignal SystemPAL or NTSCResolutionMain Stream.D1,CIF,QCIF can be ...