Defender SN301-8CH-002 8 Channel H.264 Smart DVR Security System with Coaching iMenu and 4 Indoor/Outdoor Hi-Res CCD Night Vision Surveillance Cameras & GK300-7M2 Color Video Intercom Security System H.264 video compression lets you record over a month of footage and save valuable hard drive space; Expandable System up to 8 Cameras Let the coaching iMenu teach you about the DVR's different settings and features View video online with no service fees from any computer in the world Compatible with BlackBerry, Windows Mobile, Symbian and iPhone Smart Phones This bundle includes the GK300-7M2 color video intercom security system