Optimal Power Supply: The modular power supply unit provides a reliable power source for Legrand's EasyKit intercom sets. Power is supplied simply and efficiently via the included modular power supply unit, allowing for a visually stylish and minimalist installation using hidden wiring. Flexibility: The modular power supply unit is perfectly aligned with the flexibility of the EasyKit intercom sets. The system can be easily expanded with additional cameras, ensuring your safety. 2-Wire Technology: The 2-wire technology enables quick and easy installation. The modular power supply unit supports this technology, allowing for the seamless replacement of existing doorbell systems, making it ideal for new builds and renovations.