Here's some binoculars and a walkie-talkie so we can keep in contact.
5 seconds sound clip from the Back to the Future Part II movie soundboard.
You can hear this line at 01:03:10.504 in the Blu-ray version of the movie.
Quote context
[...]
- Above all, you must not interfere with that event.
- Right.
- Once Old Biff is gone, grab the almanac any way that you can.
- Remember, both of our futures depend on this.
- You don't have to remind me of that, Doc.
- Here's some binoculars and a walkie-talkie so we can keep in contact.
- I'll stay here and try to repair the short in the time circuit.
- Yes. There are now two of me here, and there are two of you here.
[...]