Product parameters: Input: 5V2A. Battery: 400mah rechargeable; PIR sensor included: Support viewing angle: 125, ultra-wide angle App: ULooka/TUYA optional * 45 * 24mm Resolution: 1280 * 720 Recording range: 5m Audio decoding: g.711/s System supports android 4.3 or ios 9.0 or higher Battery: 1000mAh, 2 months permanent battery life Storage: Support 32G, fat format.Features: Resound alarm, remote visual call, anti-violent disassembly, high-definition video, two-way audio, 125 wide-angle, easy installation, real-time video, notification mobile phone, low power consumption, night vision sight.Advantages: The signal strength of indoor large-capacity base stations is increased by 1000%. It has its own signal enhancement function, which enables longer transmission distance, better wall penetration performance, and wider coverage.The female voice "changes in seconds" to the male voice, hiding her identity and living alone. 125-degree ultra-wide-angle lens allows you to see more, allows you to see more 1080P high-definition video images, 4:3 widescreen ratio, wider and more comprehensiveHigh-definition infrared night vision intelligent switching is equipped with LED infrared lights, and intelligently switches to infrared night vision mode at night. The image is clearly visible and can be seen clearly without light.Remote video calls you can make at home. Received courier and took out. When someone rings the doorbell, the doorbell will push a notification to the mobile phone, and the owner can enter the video chat interface of the mobile phone. Support up to 10 members to share at the same time.Doorbell apps that support multiple sharing can share the doorbell with your family when it's not convenient for you. You can also take it with your family.Energy saving, low consumption, long battery life 1000 mAh large capacity battery, 10 trips per day. Can be used for nearly 3 months (standby can be used for 6 months)