SY-37 4.3 inch Color Screen Graffiti Hidden 1080P WiFi Smart Cat Eye Video Doorbell(Black)

1. Operating system: LiteOS 2. Lens pixel: 1080P 3. Screen specification: 4.3-inch IPS LCD screen 5. APP: Support Android/IOS 6. Battery capacity: 5000mAh 7. Wide angle: 120 degrees 8. Support infrared night vision, automatic photography, monitoring intercom, motion detection 9. Support 128G memory card 10. Support door thickness 35-120MM 11. Language: English/Chinese 12. Suitable for door hole diameter: 14-30MM 16. Ambient temperature: -20~55 degrees Celsius 17. Packing list: Indoor host x 1 Outdoor sub-unit x 1 USB charging cable x 1 Metal hanging plate x 1 Screw package x 1 English operation guide x 1