4K Ultra HD State-of-the-art video to see faces, license plates, close ups & more Night2Day Colour at Night Powerful night vision up to 130ft/40m & the ability to see colour video at night up to 32ft/10m Wired Set & forget, reliable multi-camera wired connection. Weatherproof Cameras work in rain & snow, all year round Smartphone Control Access anywhere with the Swann Security app Speak to See Go hands-free with Hey Google or Alexa True Detect Reliable alerts, fewer false alarms Key Features 4 x 4K Resolution cameras with warning light 4 Channel 4K DVR with 1TB HDD Thermal sensing cameras Outdoor IP66 rated cameras with colour night vision Works With Google Home and Amazon Alexa WARNING: This product contains a button/coin battery and is hazardous. Keep batteries away from children. Batteries can cause severe or fatal injuries in 2 hours or less if swallowed or placed inside any part of the body. Medical attention should be sought immediately if it is suspected the battery has been swallowed or placed inside any part of the body.