Self-powered Wireless Doorbell with Two Transmitters and Four Receivers for Long-distance Alerts, Ideal for Elderly, Deaf, or Mute Users.

This innovative wireless doorbell offers a self-powered system that ensures reliable operation without the need for batteries. It includes two convenient transmitters and four versatile receivers, making it perfect for larger homes or spaces requiring extensive coverage. Designed with long-distance alert capabilities, it is especially beneficial for elderly, deaf, or mute users, providing an effective way to receive notifications. Its easy installation process and robust wireless range make it a practical choice for enhancing home communication and accessibility. Power Supply Mode: AC Voltage: 100-240 Ring: 60 songs 5 volume levels Power Consumption: 0.5 Scope Of Application: Open space straight line 150 meters Manufacture country: China Instructions included: No