??[Self-Generating Power]: No battery self-generation, just press the button and kinetic energy will be converted into electric energy (Pressing force is stronger than that of traditional doorbells to ensure sufficient generated energy).
??[Different Sounds & Volume]: Adjustable 4-level high volumes and optional 32 ringtones in combination with additionally self-recorded music.
??[Special Design]: Large button design with long lifespan, sensitive and convenient to use. IP47 waterproof and dustproof, no worry about wind and rain.
??[Strong Signal]: Long-distance wireless working range, can reach a maximum value of 550in in open and batter free environments.
??[Easy to Install]: Quick and easy installation without requiring wiring. Plug the doorbell host into the jack. Tear off the double-sided tape on the back of the doorbell button. Install the doorbell button on the door and the installation is completed.