² Ingenic T31Z chip, Resolution 2560×1440² With LiteOS operating system, fast wake-up and fast alarm push² Built-in high-fidelity speaker and high-definition microphone, support two-way voice intercom, with echo cancellation function² Equipped with high-power 850nm infrared lamp and white light lamp, the effective distance of night vision can reach 20 meters² Built-in 4MP, 3.6mm high-definition lens with a maximum viewing angle of 90 degrees² Built-in 3pcs 18650 high-capacity lithium batteries² Comes with Micro SD card slot, supports up to 64GB memory card² No need for wire, built-in lithium battery power supply² It can be used easily without network environment, built-in 4G module, keep the device online at any time² Built-in PIR detector, which can automatically turn on white light illumination according to human body induction at night² Support device online push and PIR detection push and manage push messages² Store content picture mode and video mode are optional² Support cloud recording, cloud on-demand, device sharing (unlimited friends)² Suitable for yards, fish ponds, orchards, farms, mines, construction sites and other environments that are inconvenient to connect to electricity and wiring