Oh, look, the handle of your umbrella.
3 seconds sound clip from Batman (1966) - The Penguin Goes Straight (S1E21) sitcom.
You can hear this line at 00:15:46.517 in the Blu-ray version of the TV Series episode.
Quote context
[...]
- 'Great heavens!' The anti-theft system built into my carrying case it went off accidently.
- Don't panic. I can fix that. There! Neutralized. By my high powered de-magnetizer coil.
- Oh, Pengy. You're fantastic.
- There's no end to your resourcefulness.
- Thank you, my love, thank you.
- Oh, look, the handle of your umbrella.
- What? Sound! My secret radio detector. Somebody has planted an electronic bug in this room.
- So, you switched cigarette holders, did ya?
- I think not. Out with you, criminal. Who are you working for?
[...]