The Newest Technology: Two Way Audio Built-in Microphone and Speaker for 2 Way Talk Hear and speak to people on your property from your mobile device. It will also expand your security coverage beyond the camera's field of view (FOV) and can help assist with interpreting events (even if they occur off-screen). Use the two way talk to scare off would-be burglars and stop crime before it happens. Full-time Color Night Vision Our Full-time Color Night Vision cameras will give you high-quality color video from daytime to nighttime. Compare to black/white video you get at night with regular infrared cameras, you will get full color video at night with this color night vision camera. With this improved feature, you get more detail and contrast in night time video recording for the extra security comfort. Motion Spotlight and Siren Clearly see and deter intruders with the powerful spotlight and loud siren. These ultra-bright spotlight cameras can sufficiently blind intruders and make it easier for you to identify them in live camera footage. Stop them in their tracks before they cause any damage to your property. True PIR Detect Heat & Motion Sensing GW Security's state-of-the-art thermal sensing spotlight security camera detects warm moving objects, like people and cars, and more, sends push notifications so you can act immediately to prevent unwanted activity. With reliable notifications and fewer false triggers, you'll save time and stress. Package Includes: • 1 x GW5532NS: 32 Channel 4K NVR with 8TB Hard Drive • 24 x GW5539IP: Bullet 5MP Two Way Audio Outdoor/Indoor IP Camera • 1 x GWSW2402G: 24 Ports PoE Switch • 12 x GWCAT100: 100 feet Ethernet cable • 12 x GWCAT60: 60 feet Ethernet cable • 2 Year Warranty and Free Tech Support