Expandable System : Easily pair additional transmitters and receivers to create a comprehensive network for larger properties. DIY Customization : Tailor the doorbell to your specific requirements with a straightforward DIY pairing process. Range & Durability : Enjoy a long-range signal of up to 300 meters, complemented by waterproofing for outdoor use. Melody Selection : Choose from 36 different melodies to set the tone for your space, adding a touch of personal flair. Visual & Auditory Alerts : The LED indicator complements the adjustable volume levels, ensuring you're alerted in all scenarios. Upgrade your space with a wireless doorbell that blends functionality with design. Perfect for homes, offices, and classrooms, this waterproof system offers expandability, a wide range of melodies, and smart LED notifications, ensuring you're always connected and informed.