Kinda Offtopic though I guess this would be useful if you wanted to have a bell near the your cinema setup. We've been double glazed at home and have a new door. Since we don't wanna go through drilling holes in the door i'm looking at wireless Door Chimes. Our old bell is still on the spot above the door. Is it possible to get a two unit setup whereby there is a wireless switch unit that goes outside and a small unit that could stick inside near the door that will form a connection between the two contacts for the regular bell we have when the outer unit transmits a signal? We're considering an upstairs (above garage) extension and I'm thinking of having a projector setup there so it may well be that regular portable wireless chimes would allow for the unit to be placed in the room/near it so that we hear even if watching movies etc. Also most wireless efforts seem to have ugly external buttons - something brass/"brass effect" that could be stuck on would be good. Thanks.