【Strong Signal, Anywhere】Our doorbell offers a powerful range of 300 meters in open areas, ensuring you are 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 water resistant, supporting temperatures from -30°C to 70°C. It withstands harsh conditions while enjoying extremely low power consumption for a long-lasting battery life of 1 to 3 years. 【Personalized Sound, Flexible Modes】Enjoy precise control with 5 volume levels up to 110 dB, perfect for the hearing impaired or elderly.