[Wireless & 2 Years Warranty] KAVASS&reg; 4W100006-OB iPhone Android Smartphones & Internet Access 4CH Security NVR HDMI H.264 with 1TB Hard Drive and 4 HD 720P Night Vision Wireless iP Cameras Embedded RTOS design,pure hardware compression Easy and Simple installation Remote and viewed by computer and phones at any time View your camera footage from anywhere in the world,iPhone, iPad, Android, and Blackberry Viewing via Free App Supports three-level account, password, user multi-level authority management