Amazon offers the Netgear Arlo 6-Camera HD Indoor / Outdoor Wireless Surveillance System for $399.98 with free shipping. That's tied with last week's mention as the best price we've seen for any 6-camera Arlo system. (It's also a low by $125 today.) It works with Alexa and includes a base station, six Arlo Wire-Free cameras, up to 1GB cloud storage, motion detection, night vision, and six magnetic mounts. It's compatible with iOS and Android.