That's the door, maybe booby-trap. We won't take any chances if we use the Bat-beam.
6 seconds sound clip from Batman (1966) - The Purr-fect Crime (S1E19) TV Series.
You can hear this line at 00:17:55 in the Blu-ray version of the movie.
Quote context
[...]
- Only the Catwoman'd choose a hideout with those names.
- I'm glad you're upping your foreign languages, Robin. They come in handy when fighting crime.
- Si, si, Batman, what do we do now?
- That's the door, maybe booby-trap. We won't take any chances if we use the Bat-beam.
- You're right again, Batman, we might have been killed.
- Seems, it would be more difficult getting out of here than it was getting in.
- Good evening, Batman and Robin Welcome
- Good evening, Catwoman. It seems as if you were expecting us.
[...]