NS Series security surveillance system with 16-Channel featuring 8x 420 TVL high resolution with CCD cameras. The 65 degrees viewing angle and 24 LED helps you monitor wider areas . They have powerful night vision for up to 65ft/20m in total darkness and waterproof cases that allows the cameras to be weather resistant. These combo kits come with our exclusive free software KVIEW. KVIEW allows customers to remotely access the DVR through many devices such as smart phones, tablets, PC and Mac. Customers can remote monitoring, record and playback, as well as do search by events and set up motion detection alarm with email notification.