Sorry if I confused you. There is only one Door Bell. You are supposed to place the Door Bell outside. See some dog's would say "Woof Woof" to go outside or scratch or whatever then once outside wouldn't ask to come in, so people use the door bell so there dog can tell them when they are ready to come inside.

BUT, I have to opisit problem. Breeze lets me know when she wants to come in but won't let me know when she wants to go out. So, instead of asking to go out she goes in the kitchen (she is over a year old!) so what I'm doing is leaving the door bell inside so that Breeze can ask to go out.

Hope that helped you understand more..

Ash