SURFOU Wireless Doorbell, 1,300 ft Long Range Cordless Battery Operated, Wall Plug in Electric Door Chime Kit with 55 Melodies 5 Volume to Choose, LED Entry Bell

【Strong Signal, Anywhere】Our doorbell boasts a powerful 400m range in open areas, ensuring you're always in touch. Whether you're in the backyard, upstairs, or even in the basement, never miss a visitor again. 【Set Up in Seconds】Effortlessly mount the wireless doorbell transmitter to your wall using either the provided screws or adhesive tape. Enjoy hassle-free installation in less than a minute. 【All-Weather Performance】Our radio doorbell is dust and waterproof, enduring temperatures from -30°C to 70°C. It withstands harsh conditions while boasting extremely low power consumption for 1-3 years long-lasting battery life. 【Custom Sound, Flexible Modes】Enjoy precise control with 5 volume levels up to 110 dB, perfect for the hard of hearing or elderly. Easily switch between LED only or LED + ring modes and select from 55 melodies for personalized alerts. Your last settings are saved for uninterrupted convenience. 【36 Months Warranty & Dependability Meets Excellence】We offer a 36-month warranty (registration only) and friendly 24-hour customer service. Our wireless bell set is not just reliable, but backed by a commitment to exceptional customer service, available 24/7 to support you.