Smart Wireless Doorbell Family Door Bell Chime Kit 300M/1000Ft Long Distance 60 Songs Intelligent Doorbell Kit US EU Plug

Brief introduction: Thank you for choosing this wireless doorbell. it is easy to install, no wiring isrequired, just plug the receiver into the power socket, install the transmitterwhere you want to place, and the doorbell function can be easily realized. 60 pieces of melodies (depending on different models),multi-level volume can beadjusted independently, and the transmitter and receiver can be freely addedand paired to meet different demands. Technical Parameters: Receiver operating voltage: AC100-220V Receiver power consumption: 0.5WOperating frequency: 433MHz Transmitter power consumption: <10mw (spectrum analyzer antenna combined test, CE standards limit) Transmitter battery: 12V/23A batteryBattery life: press 20 times per day, about 1 years Sound volume: 25-85dB (tested at 0.5 meters) Remote Distance: about 300 meters in the free area, about 20-50 meters indoors with obstacles Note: The remote control distance is affected by walls, radios, metals, etc. It is normal to have a certain deviation in actual using