ST-69RN

Product datasheet
Portable wireless DC door chime
Wireless working range up to 80 meters in open area
36 melodies to choose on door chime
Select the interesting melodies on chime freely
Sound volume can be adjusted in 4 level from quiet to 85dB
Working method of chime: melody+lighting
Frequency in 433MHz
Power of chime: 3pcs AA size battery
Power of transmitter: 1pcs 12V/23A battery