General description This self-powered wireless doorbell is designed for easy installation without the need for batteries or wiring. It features a waterproof transmitter with an IP44 rating, ensuring durability against rain and sun exposure. With 38 selectable ringtones and adjustable volume levels, this doorbell is perfect for various settings including homes, hotels, and hospitals. Technical specifications Operating Voltage: AC 100-230V Power Consumption: 0.25W Wireless Frequency: 433MHz Operating Temperature: -10°C to +55°C Ringtone Volume: ≥ 50 dB/1 m Remote Control Distance: 150 m (open area), approximately 50 m indoors without partitions Installation No wiring required; simply plug and play. Transmitter should not be installed near metal objects to avoid interference with the signal. Usage Ideal for residential, hotel, villa, and hospital settings. Can be used as a pager for elderly, babies, or pregnant women needing assistance. Other information