ML18 Mini Ultra Wide Angle Smart Video Doorbell Support Two-way Voice 1. Battery: 1000MA 2. Viewing angle: 60 degrees 3. Recording method: wake-up recording 4. Resolution: 640x480 5. Support two-way voice intercom, cloud storage. 6. Wake-up method: ring the bell to wake up 7. Supports wireless WiFi connection, does not support 4G5G 8. Support system: AndroidiOS 9. 90 degree wide angle, support 5m night vision. 10. Press the doorbell to automatically store in the cloud, and you can view past pictures at any time. 11. Real-time video calls, easy to deal with visitors. 12. Built-in 1000mAh large-capacity battery, super battery life. 13. Support switching multiple modes of voice changing function. 14. The memory card can be inserted, and the maximum support is 128G memory card. Press the doorbell to start recording.(This product does not contain a memory card) 15. Use with Ding Dong to prevent missed listening. 16. Convenient installation, can be pasted and punched, simple and convenient.