1. Product Overview
The MADV Smart Video Doorbell 2M provides advanced security features for your home. It offers 2K resolution video, night vision capabilities, and two-way audio communication. Key features include motion detection, a voice changing answering function for privacy, and secure cloud storage for recorded events. A free smart chime is included for indoor notification.
Key Features:
- 2K HD Imaging: Ensures a clear view under various lighting conditions.
- Instant Communication: Two-way audio and voice changing feature for interacting with visitors.
- Anti-Theft Protection: Built-in alarm system notifies you if the doorbell is tampered with.
- Secure Cloud Storage: Records motion-detected events for later review.
- Free Smart Chime: Offers fourteen ringtones and adjustable volume for indoor alerts.

Image: The MADV Smart Video Doorbell 2M, showcasing its sleek design.
4. Operation
4.1. Live View and Two-Way Audio
Access the live video feed through the Mi Home app. When a visitor presses the doorbell, you will receive a notification on your smartphone, allowing you to see and speak to them in real-time.
- Voice Call: Initiate a voice call with the visitor through the app.
- Voice Reply: Use pre-recorded messages or the voice changing feature for privacy.

Image: Depicts the two-way audio and voice changer functions of the doorbell.
4.2. Motion Detection and Alerts
The doorbell is equipped with smart motion sensing to detect activity at your door. You will receive instant notifications on your phone when motion is detected.
- Customizable Detection Range: Adjust the motion detection zones to focus on specific areas and reduce false alerts.
- Alert Type: Audio and motion alerts are supported.


Images: Illustrates smart motion sensing and customizable detection range.
4.3. Night Vision
The doorbell features night vision technology, ensuring clear video footage even in low-light conditions or complete darkness.

Image: Comparison of day and night vision capabilities of the doorbell.
4.4. Cloud Storage
The MADV Smart Video Doorbell 2M includes free 72-hour circular cloud storage for 5 years, allowing you to review recorded events without a subscription fee.

Image: App interface displaying recorded events stored in the cloud.
4.5. Anti-Theft Alarm
The doorbell features a built-in burglar alarm. If someone attempts to remove the doorbell, it will trigger an alarm and send a notification to your phone.

Image: Illustration of the anti-theft siren and phone notification when the doorbell is being removed.
5. Maintenance
5.1. Battery Charging
The MADV Smart Video Doorbell 2M is powered by a built-in 3700 mAh Lithium Ion battery. When the battery level is low, connect the doorbell to a power source using one of the provided USB cables to recharge it. A full charge can last up to 3 months depending on usage.


Images: Illustrates the built-in rechargeable battery and its long life.
5.2. Cleaning
To maintain optimal performance, periodically clean the lens and infrared sensor with a soft, dry cloth. Avoid using abrasive cleaners or solvents.
8. Warranty and Support
8.1. Return Policy
This product is eligible for a refund or replacement within 30 days of purchase, as per the standard return policy.
8.2. Extended Protection Plans
Optional extended protection plans are available for purchase:
- 2-Year Protection Plan: Available for $7.99 (one-time payment).
- 3-Year Protection Plan: Available for $9.99 (one-time payment).
- Complete Protect: A monthly plan for $16.99 covering all eligible past and future purchases.
8.3. Manufacturer Support
For technical assistance or further inquiries, please contact MADV Technology. Refer to the contact information provided in the product packaging or on the official MADV website. Note that some customer reviews indicate that direct phone support may not be available, with email being the primary contact method for support.