•38 Different Chimes
•Frequency:433.92MHZ
•Power Supply: Receiver 2X1.5V AA
•Remote CR2032*1 included
•Simple learning function
•4 Volume Levels
•Transmission distance range: up to 150m(open air)
•Sound Level: 90dB
•Remote with IP44 waterproof
•The front of the doorbell is covered with more than 10 colors to choose from