Description
Features:
collection
distance:***0m
display:single LED
display
control
voltage：*2V
receive
frenquency：**5MHZ(the frequency is according tothe Geneva
International Convention specified global civil communication
frequency)
display language:it can display
chinese,english,arabic etc.
it have regulate speed at five
levels
you can customize the ads
content and greeting
time function:it have two kinds
of electronic clock and can check out the time automatically ,we
use a twenty-four hours clock.
study code disposable
registration，
three kinds of chord
bells
material：ABS（the crust），**0%import parts，its
life-span is three times more than country call button
