Best digital wireless remote doorbell with 2 receiver for apartment

1)  Suitable for homes, office installed in or outdoors buildings and ships etc.

2)  32 sounds selectable at either transmitter or receiver 

3)  Transmitter uses 1x12V 23A battery (supplied)

4)  100m operating range

5)  Easy to install

6)  No electrical wires to install

7)  Suitable for Hard of Hearing with Strobe feature

8)  Low power consumption

9)  CE certificate

Material:ABS plastic
Color: Blue orange
Accessories:One sender,two receiver, one button battery
Power:2*1.5v AA battey
Type: Wireless doorbell