Walkie-Talkies aren't cell phones... Finale mistake.

I lost it when the music is playing over the walkie-talkie and she screams "It's working" into it while the music is still playing. Walkie Talkies are PTT (push-to-talk) and it's one-way communication. You push a button to talk and while you are doing that you can't hear anything. So even if she did push the button, Garrett wouldn't hear it because he is holding the button down on his end to send the music. Also, the music would not be heard anymore if she pushed the button, but it clearly was. The scene is about 31 mins 20 secs into the episode. Just WHY? And why would screaming make it any more audible on the other end, it's not like she's talking to her half deaf grandma... She knew how to push the button a minute earlier when she signals Garrett "Now!".

Eitherway it's awful. Sigh.