For her:
Already I string provided is not suitable for large sizes (44 and over) and the receiver does not adequately in place in another string.
The vibrations are a little weaklings: titillate yes, get it up to 7th heaven not.
The operating LED (white too) will go to Mrs. an airliner if it gets skirt in a dark place: we see flashing across the string !!!
Fun, yes, but at that price I expected much better!