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My $.02 worth? .... I refuse to acknowledge the existence of any such "ringing/talking devices" while soaking ...
I agree with the voice mail /answering machine taking the calls while you're enjoying the tub, but for the times I am expecting an important call, etc. that just can't wait, I have that exact phone, the yellow Uniden. I purchased mine at our local Lowe's home improvement store and I've been very happy with it. I have it hooked up in the kitchen right at the back door so I can grab it on the way out to the tub if I need to.