SURFOU Wireless Doorbell Cordless Waterproof with 1 Portable Receiver Battery Powered (Batteries Included), Operated at 1,300ft Long Range, Electric Door Chime Kit with 55 Melodies 5 Volume, LED Flash

【Doorbell with battery】Equipped with three AAA batteries (included), this doorbell offers stable, so no electric outlet needs to be occupied, long-term use, eliminating the hassle of frequent battery changes and ensuring that the doorbell is always ready to alert.
【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.
【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.
【Dependability Meets Excellence】Our wireless bell set is not just reliable, but backed by a commitment to exceptional customer service, available 24/7 to support you.