Usage Tips:Enhanced Wireless Connectivity: Experience the convenience of a doorbell system that covers an extensive range, ideal for large homes or facilities. The CZD101 ensures that you never miss a visitor, whether you're in a distant room or on another floor. Designed for Special Needs: This doorbell is not just an ordinary alert system; it's a reliable tool for patient care and elderly monitoring. The easy-to-use remote control makes it perfect for individuals with limited mobility, providing peace of mind for both caregivers and family members. Intelligent Features: Equipped with smart technology, the CZD101 doorbell alerts you with clear and distinct signals, customizable to your preference. It's more than just a doorbell; it's an integral part of your home's intelligence system. Colour:White Material:plastic Package Contents: 2 x Ultra Long Distance Doorbells Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.