No Battery Required: Our wireless doorbell transmitter uses PUSH-RF technology. When you press the button, kinetic energy is converted into an electrical signal that wirelessly activates the doorbell. Eliminates the need for batteries, offering a more convenient, energy-saving, and practical solution. 52 Chimes and Melodies: Features 52 classic melodic chimes with adjustable volume control and a wide selection to suit various preferences. Offers 4 volume levels ranging from 0dB to 90dB, loud enough to be heard by elderly users. Includes a visual LED indicator for added notification, ideal for the hearing impaired. IP44 Waterproof Design: The transmitter has an IP44-rated waterproof and dustproof design, constructed from durable ABS material that is non-toxic, safe, and recyclable. Operates reliably in temperatures from -20°C to 65°C, withstanding rain, snow, frost, and prolonged sun exposure. Suitable for use in various environments including homes, offices, hotels, hospitals, apartments, schools, and villas. Long Wireless Range: Provides a reliable wireless range of up to 150 meters (500 feet) with strong signal penetration. Includes 2 plug-in receivers that do not interfere with household electronics or neighboring devices. Ensures reliable notification even across multiple rooms or floors, ideal for large homes, offices, and commercial spaces. Easy Installation: Simple to set up—secure the transmitter to the wall using the included double-sided tape or screws, then plug the receiver into a standard power outlet. All components can be re-paired and managed as a unified system. Compact and Stylish Design: Sleek, design complements home or office decor. Compact size allows for flexible placement without sacrificing aesthetics. Ideal for the Hearing Impaired: Combines ble chimes with bright LED flash notifications, making it easier for hearing-impaired individuals to detect visitors. Mute mode option allows for silent alerts using only the visual indicator. Versatile Use: Well-suited for residential and commercial applications including homes, apartments, offices, classrooms, warehouses, and medical facilities. A thoughtful choice for family, friends, or loved ones seeking a reliable doorbell solution.