"Where does the voice come from?"
"Another Kamiss innovation. An ultrasonic selector draws the words from a storage wire attuned to—"
"Enough chatter. I'll take one."
The salesman beamed. "Where would you like it delivered, sir?"
"I'll take it with me. I plan it as a surprise gift for my wife."
The salesman's smile vanished. "Then perhaps you could bring the lady here to our establishment—"
"No," Gardner scowled. "Why should I?"
"As I was endeavoring to explain, sir, the units are, of necessity, completely individualized. The controlling factor is the electronic wavelength of the owner's brain. As you know, the frequency of every human brain varies. No two are alike. That is the key to the whole concept of Domestic Two. We—"
"Will you quit babbling and get to the point!" Gardner bellowed. "Tell me in simple words why I can't take the robot with me!"
"Because, sir," the clerk answered in a frightened voice, "to be of any value to your wife, the unit will have to be keyed to her brain frequency."