The XG-DB020 Wireless Door Bell Button is a reliable and energy-efficient solution for enhancing entry-point communication at homes, offices, apartments, clinics, and retail spaces. Designed to work over 433MHz (eV1527 protocol), it ensures seamless integration with compatible chime or alarm systems. Powered by a 23A 12V battery, the XG-DB020 features zero standby current, resulting in exceptional battery longevity while maintaining quick and responsive activation at just 40mA working current. Its slim, lightweight design allows easy installation on doorframes, gates, or walls without compromising aesthetics. Built for reliable performance across diverse environments, it operates effectively within a temperature range of -10°C to +50°C, and up to 95% relative humidity in non-condensing conditions, making it a robust everyday solution for residential and light commercial applications.