Self-powered Wireless Doorbell : Enjoy the benefits of a smart doorbell that harnesses the power of motion. Our system generates its own energy, providing a sustainable solution that requires no batteries. Waterproof Push Button : Durability meets functionality with our waterproof design. The push button is engineered to withstand the elements, maintaining peak performance in any weather. 38 Selectable Ringtones : Choose from a diverse selection of 38 ringtones to match your style. Whether classic or contemporary, find the perfect sound to greet guests at your door. 4-Level Volume Control : Customize the volume to your liking. From soft whispers to clear tones, the adjustable volume ensures the doorbell is heard without being intrusive. Retains Settings : Even in case of a power outage, our doorbell remembers your preferences. Your chosen ringtone and volume settings are securely saved, ensuring a smooth user experience. Upgrade your home with our smart wireless doorbell set. Designed to be self-powered, it operates efficiently without the need for external batteries. The waterproof push button is resilient against the elements, ensuring reliable performance in any climate. Select from 38 delightful ringtones to customize your greeting, and adjust the volume to suit your household. Our system's memory function guarantees your settings remain intact, even after power interruptions. Elevate your living space with the sophistication of modern technology. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin