111° wide-angle lens, 940nm infrared non-invasive sensor, 4x digital zoom. Capture the scene in clarity with the wide-angle lens and zoom capabilities. The non-invasive sensor will not disturb your sleeping children.Records in 720p HD to capture clear images for your records and while using 2-way audio (built-in microphone and speaker). 720P/20FPS,700Kbps; 360P/20FPS,200Kbps.Built-in (802.11 bgn) Single band 2.4Ghz. Reliable Wi-Fi connectivity to access your camera on YI Home App at anytime.No monthly subscription fees: Secure your videos on a micro SD card (not included), own your video content and access video history anytime. Supports 4-32GB micro SD cards with FAT32 format.Real-time streaming to your phone & activity alerts when motion is detected. YI Home App allows you to customize your settings according to your preferences: defined activity regions, camera sharing, customize alert schedules, and more. Available for iOS and Android.