Wireless Door Bell

Working frequency of 434 MHz Prevent wrong calling by anti-interference digital technology and 19,683 pairs of codes Remote control distance above 60m. IP44 waterproof transmitter Choose between sixteen melody rings Has long lifespan batteries which when combined energy-saving patent technology, supports long operation Professional remote control technology for flexible installation even on iron gates Receiver with input DC voltage, relevant control distance of 60 m or 120m (CE and FCC approved)