This WiFi security camera earned The Best rating from the Hammacher Schlemmer Institute because it recorded the clearest video and audio. Unlike lesser models that provided a fuzzy picture and muffled sound, The Best model transmitted crisp 4MP 1080 HD video at 20 frames-per-second and crystal-clear conversations from 20' away. It enables homeowners to monitor their property on a smartphone, tablet, or desktop computer from anywhere in the world and sends notifications when it senses motion. The Best model pans 355° and tilts 90° remotely, its night vision captures video from up to 33' away, and stores it on the included 16 GB micro-SD card. The Best unit also has a built-in microphone and speaker, providing two-way communication. AC plug. 3 3/4" H x 3 3/4" Diam. (8 oz.)