‘-The wireless system maked installation easy and brings no effect on your interior decoration -The ultra distance remote control is 50 meters long meets the need of various buildings -Built in envi -pro.ele.economiz.system with very low power consumption,alkane battery may last a long time -Combination of quadri-partial tone ,the tone has been identified by music master -It is really the guarantee of high quality -With loud and music it can be place anywhere indoors -It is suitable for home, office buildings,Factories,,Hotels,and reception halls etc -This door bell can be placed anywhere indoors , you can move it as you like
