1080p HD Smart Video Technology - Its sleek design houses an advanced Ambarella S2LM IP camera SoC, enabling super low bit rate H.264 video compression and featuring a powerful ARM Cortex A9 CPU; it leverages Ambarella's SmartAVCTM, a low bit rate video streaming technology, to achieve a saving of 40% in video size while preserving superb 1080p HD live video quality. First-class Night Vision - Build with best in class Panasonic 1/2.8 inches CMOS sensor with vMaicovicon technology for a clear image even in conditions of very low light; 11 pieces of 940nm infrared LED beads; no light pollution, so baby or pet will not be disturbed by light; cannot be detected by intruders. Two-way audio - Advanced compression algorithms yields even better sound quality, supporting a sampling rate of up to 48 KHz; 360° noise-canceling hypersensitive microphone for much clearer voice quality while eliminating excess environmental noise. Enhanced motion detection & Alert - The latest motion detection technology reduces false alerts by identifying moving objects with better precision and reducing the impact of light changes and other interfering factors. Intelligent vision analysis algorithms only send alerts when appropriate movement is detected. Best Security & No subscription fees - We use 2048-bit RSA private key for key exchange with the YI Cloud Service, and encrypt data using AES-128. Encoding with h.264HP level 5.1/ROI/LBR (SmartAVC), providing most efficient compression and the highest protection of data. No monthly subscription fees: Secure your videos on a micro SD card, own your video content and access video history anytime. Supports 8GB - 64GB SD micro SD cards with FAT32 format.