Perfect Replacement: Our mechanical wired doorbell can be used in conjunction with most doorbell switches, making it suitable for replacing your old doorbell. Easy to Install: The doorbell is secured with screws and can be installed and used without complicated tools, saving time and effort. The compact design saves space, and the unit can be cleaned with a dry cloth. AC Powered: This wired doorbell operates on AC power. Once installed, there is no need to replace batteries or charge the device, providing a long-term, convenient solution. High Quality: The ding dong home doorbell features a high-quality ABS flame-retardant shell that resists oxidation, impact, and corrosion. The durable construction offers a simple and elegant appearance. High Power Speaker: This wired doorbell is equipped with a high-power speaker that delivers loud, clear sound with strong penetration, effectively alerting household members from any room.