... 4ch recording,Network transmission, and playback simultaneouslySupport dual-stream transmission for all channelsSupport Multiplex operation: live, record, playback, backup, network ... IR Distance 20M)BE-DID424PCS BE-DID42(Color 1/3" Sony CCD,420TVL,Vandalproof IR Dome Camera,24 pcs 5mm IR-LED,3 ... IR Dome Camera,24 pcs 5mm IR-LED,3.6 mm Lens,IR Distance 20M)Others4PCS 12V/1A power adaptor for CCD ...