General description The Wireless Doorbell is a versatile and reliable chime kit designed for home, office, or hotel use. It features a long-range wireless signal that can transmit up to 300 meters in open spaces, ensuring you never miss a visitor. With 36 different melodies and 4 adjustable volume levels, this doorbell can be customized to suit your preferences. The waterproof transmitter ensures durability in all weather conditions, making it perfect for outdoor use. Technical specifications Waterproof rating: IP44 Operating temperature: -30°C to +70°C Working frequency: 433.92MHz + 75kHz Receiver voltage: 100-260V / 50-60Hz Transmitter battery: 12V23A mercury-free battery Volume: 0-100 decibels, 4 levels adjustable Product certifications: FCC, CE, ROHS, appearance patent Installation Installation is straightforward and can be completed in two simple steps: connect the portable receiver to any mains outlet and use the included patch or screw to attach the transmitter to the wall. The