Kajia Si Wireless Smart Doorbell - Battery-Free, Long-Range Notification Button for Home.

Introducing a cutting-edge doorbell solution that combines convenience and innovation. This wireless smart doorbell operates without the need for batteries, ensuring a hassle-free experience and eliminating the frequent need for replacements. Its long-range notification capability ensures you never miss a visitor, as it efficiently transmits alerts over impressive distances. Perfect for any home, it offers reliable performance and a sleek, modern design, enhancing both the functionality and aesthetic of your entryway. Order Number: FA99 two-in-one Power Supply Mode: AC Voltage: 110-220 Ring: 4-level volume 36 songs Power Consumption: 1 Scope of Application: The straight-line distance to the vacant lot is 150 meters. Data source: Factory laboratory. Manufacture country: China Instructions included: No