SY-38 4.3 inch WIFI Doorbell Viewer Support Night Vision & Motion Detection & Remote Voice

1. Visitors automatically take photos and videos by ringing the doorbell2. This product has three built-in infrared LEDs, supports two-way audio, with noise cancellation3. Easy to install without any cables, just Wifi connection4. APP: Support Android/IOS5. Operating system: LiteOS6. Screen specifications: 4.3-inch IPS LCD screen7. Display resolution: 2.0MP-1920x10808. Lens pixel: 1080P9. Battery capacity: 5000mAh lithium battery10. Wide angle: 170 degrees11. Maximum support 32G memory card12. Support door thickness 35-120mm13. Suitable for door hole diameter 14-50mm14. LCD size: 136x82x20mm15. Main body size: 73(L)x65(W)x53(H) mm16. Net weight: 270g17. Charging port: Micro-USB18. Input/Output: Built-in Microphone and Speaker19. Operating temperature: -20 degrees Celsius - 55 degrees Celsius20. Relative humidity: 85% (non-condensing)packing list:- Indoor host x 1- Outdoor handset x 1- Metal hanging plate x 1- USB charging cable x 1- Screw Pack x 1- English operation guide x 1