That isn't a vacuum cleaner. That's 'Lectronimo.
6 seconds sound clip from The Jetsons - The Coming of Astro (Season 1, Ep. 5) TV Series.
You can hear this line at 00:12:13 in the Blu-ray version of the movie.
Quote context
[...]
- What more could a guy ask for? I ask you, what more?
- How about a typical, American TV-type dog, Dad?
- Well, I've got a surprise for you.
- Gee, Dad, we already have a vacuum cleaner.
- That isn't a vacuum cleaner. That's 'Lectronimo.
- Our new, no-feed, no-fuss, nuclear-powered, electronic, apartment-approved dog.
- Dog?
- Dog?
- Dog?
- There must be an echo around here someplace.
- Besides, 'Lectronimo is just the protection we need with all kinds of cat burglars prowling around.
[...]