Smart Wireless Doorbell

**Experience Ultimate Convenience and Security with the M557 Waterproof Wireless Doorbell!**

Elevate your home or shop security with the cutting-edge M557 Waterproof Wireless Doorbell, engineered with leading technology to deliver unparalleled performance and stability.

**Key Features:**

**Customizable Melodies:** Choose from 32 delightful melodies to personalize your doorbell experience, ensuring you never miss a visitor or alarm notification.

- **Long-lasting Battery:** Enjoy uninterrupted functionality with the doorbell's robust battery, supporting up to 30 transmitters without any power loss. Plus, the button's battery ensures reliable performance with options for either 23A 12V or CR2032 battery.

- **Adjustable Volume Levels:** Tailor the volume to your preference with adjustable volume levels, providing flexibility for different environments and user preferences.

- **Waterproof Design:** Built to withstand the elements, the M557 Doorbell is waterproof, ensuring durability and reliability even in harsh weather conditions.

- **Eye-catching Backlight:** Impress your visitors with an eye-catching backlight that activates when the doorbell is pressed, adding a touch of style and elegance to your entryway.

**Ideal for Everyone:**

- **Shopkeepers:** Stay alert to customer arrivals with the M557's reliable alarm notifications and customizable melodies.

- **Families:** Enhance home security and convenience with easy-to-install wireless technology that supports EU, US, and plug configurations.

- **Elderly & Pregnant Women:** Enjoy peace of mind knowing that visitors will always be heard with adjustable volume levels and customizable melodies.

- **Those with Hearing Difficulties:** Ensure accessibility for everyone with clear and customizable doorbell melodies, perfect for individuals with hearing impairments.

**Technical Specifications:**

- **Receiver Working Voltage:** AC 100-220V
- **Working Current:** <100mA
- **Wireless Frequency:** 433MHz
- **Working Temperature:** -10 ° C - 50 ° C
- **Wireless Distance:** Up to 150 meters in open space

**Experience Seamless Installation and Exceptional Performance:**

Say goodbye to cumbersome wires and hello to effortless installation with the M557 Waterproof Wireless Doorbell. With its advanced features and user-friendly design, it's the perfect addition to any home or business seeking enhanced security and convenience.

**Upgrade Your Doorbell Experience Today:**

Transform your entryway into a smart and stylish space with the M557 Waterproof Wireless Doorbell. Don't miss out on the opportunity to elevate your security and convenience – order now and experience the difference firsthand!