Smart Wireless Doorbell

Upgrade your home or shop security with the state-of-the-art M557 Waterproof Wireless Doorbell. Engineered with cutting-edge technology, this doorbell offers unparalleled performance and stability to keep you alert and secure at all times. Customizable Melodies Personalize your doorbell experience with 32 delightful melodies. Choose the perfect tune to suit your style and preferences, ensuring you never miss a visitor or alarm notification. Long-lasting Battery Experience uninterrupted functionality with the M557's robust battery. Supporting up to 30 transmitters without any power loss, you can rely on consistent performance. Plus, the button's battery offers options for either 23A 12V or CR2032, ensuring reliable operation. Adjustable Volume Levels Tailor the volume to your liking with adjustable volume levels. Whether you prefer a subtle chime or a louder alert, the M557 provides flexibility for different environments and user preferences. Waterproof Design Designed to withstand the