This would be a small device that would attach to your doorbell chimes and send a signal to a remote chime (similar to a child monitor). The remote chime could be run by battery or could have a plug that flips up (in the same manner as many rechargeable flashlights, or torches, as some prefer), and would be instantly portable.-- Salted Nuts, Jul 16 2003 Bakedingdong http://www.lordhenry.ws/battery.htmIncludes one with a belt clip [Helium, Oct 04 2004, last modified Oct 21 2004] I think you mean doorbell ring extension.-- sartep, Jul 16 2003 so.. a wireless doorbell ? very much baked, positively roasted.-- neilp, Jul 16 2003 random, halfbakery