Product Highlights
- Head-to-toe 180° view
- IP65 waterproof
- Ultra-clear 2K resolution

Transform your home security with our next-generation smart video doorbell!
- Step into a new world of home security with our state-of-the-art smart video doorbell, designed to provide unparalleled clarity, versatility, and control.
- The Xiaomi Smart Doorbell 3S is packed with advanced features to ensure your home remains secure and connected.

Exceptional 2K Ultra-Clear Resolution:
- See every detail with stunning clarity with our 3MP (2048×1536) resolution.
- This high-definition image quality outperforms standard 1080p doorbells, delivering razor-sharp images so you can identify visitors and monitor activity clearly.
Durable IP65 Weather Resistance:
- Built to withstand the toughest weather conditions, the doorbell features an IP65 rating.
- The robust design ensures consistent performance and reliable monitoring even in heavy rain, intense heat, or freezing cold.
Seamless Integration with Voice Assistants:
- Enjoy hands-free convenience with full compatibility for Alexa and Google Voice Assistant.
- Easily manage your doorbell and monitor your home with simple voice commands and integrate it smoothly into your smart home system.
Innovative Two-Way Audio with Privacy Features:
- Communicate directly with visitors through high-quality two-way audio via your smartphone.
- The smart voice modification feature adds an extra layer of security by disguising your voice, gender, and age to protect your identity and privacy.
Wide 180° Angle for Comprehensive Monitoring:
- Capture every angle with our advanced 180° ultra-wide-angle camera lens and a 107° vertical field of view.
- The expansive coverage ensures you have a complete panoramic view of your doorstep, eliminating blind spots and improving your security.
Flexible Power Options:
- Choose the power solution that best suits your needs:
1. Lithium battery
2. Traditional hardwired connection for continuous power.
- Ensures smooth installation and operation based on your preferences with this flexibility.
High-Volume Wireless Indoor Chime:
- Never miss a visitor with a high-volume wireless chime.
- It continues to function even if the internet connection is interrupted, ensuring you are always alerted when someone is at your door.
Free 72-Hour Cloud Storage:
- Access recorded footage from the past 72 hours at no extra cost.
- Our free cloud storage allows you to review recent activity without the need for a microSD card or subscription, providing peace of mind with easy access to important recordings from anywhere.
Advanced Features for Enhanced Security:
- Our smart video doorbell combines cutting-edge technology with user-friendliness.
- Offers a sophisticated solution for modern home security.
- From real-time notifications to detailed monitoring, enjoy full control over your home's security.
Elevate your home security with our smart video doorbell, where innovation meets functionality.
Experience the ultimate in convenience and protection, and ensure that your home is always secure and your family is always safe.

Package Contents
Xiaomi Smart Doorbell 3S, mounting base, wedge kit, chime, removal pin, Type-C charging cable, screw bag (wall screw x 2, anchor x 2, wedge kit screw x 2), U-type extension wire x 2, isolation cover x 2, U-type double terminal wire, user manual, attention sticker, warranty notice.
Specifications
- Name: Xiaomi Smart Doorbell 3S
- Model: MJML07-FJ
- Battery capacity: 5200mAh (TYP)
- Nominal input: 5V 2A (Type-C port); 8–24VAC, 10–40 VA, 50–60 Hz (doorbell AC transformer)
- Wireless connection: Wi-Fi IEEE 802.11 b/g/n 2.4 GHz, SRD 433MHz
- Wi-Fi operating frequency: 2412–2472 MHz
- SRD RF operating frequency: 433.05 MHz–434.79 MHz
- Night vision light: 940 nm infrared light
- Audio system: Two-way audio
- Charging temperature: 0°C to 45°C
- Operating temperature: -20°C to 50°C
- Operating humidity: 10%–90% RH, non-condensing
- Video encoding: H.264
- IP rating: IP65
- Chime Model: MJJSQ04-FJ
- Chime nominal input: 5V 1A
- Chime wireless connection: SRD 433 MHz (reception only)
- Chime operating temperature: 0°C to 45°C
- Chime operating humidity: 10%–90% RH, non-condensing