I'm trying to keep myself active by continuing some studies I have been doing for the last 2 years, but my husband keeps calling out to me "What should I be doing?" , "What do I do now?", "Are we doing......?" etc - you all know what I mean. The trouble is, even with wearing hearing aids, I can't always understand what he is saying and so have to get up from my chair (breaking my concentration) and go to wherever he is. I need to find some two-way communication aid which doesn't need him to have to switch anything on/off. Has anyone any suggestion? Especially if it is something that can be 'worn' on a lanyard, so that when he goes 'walkabout' in the house it is still with him.