Nest Cam IQ, Indoor Security Camera, With Incredibly Crisp, Clear 1080P HD Video & HD Talk & Listen, Advanced Algorithms That Can Identify When Someone's In Your Home, Alert Your Phone, & Automatically Track That Person As They Move Through The Room, While Still Showing You The Big Picture, Smart Enough To Tell A Person From A Thing, Then Alert You, A 4K Sensor, 12X Digital Zoom & High Dynamic Range Imaging Offer Extra Clear Video That Can Automatically Zoom In & Track Intruders, HD Talk & Listen, Lets You Have A Seamless Conversation, 24/7 Live Video, See A 130 Degree View In 1080P HD, Day Or Night, 3 Hour Snapshot History, Review What Happened In The Nest App, Even If You Missed An Alert, SIGNED RESELLER AGREEMENT IS REQUIRED TO ORDER.