0:01
Please enable Javscript
Morse code letter "u", amateur ham radio
0:01
Please enable Javscript
Radio with weak signal, morse code letter "e", military
0:01
Please enable Javscript
Radio with a weak signal, morse code letter "y", military
0:01
Please enable Javscript
Radio with a weak signal, morse code letter "o", military
0:05
Please enable Javscript
Removing a letter from an envelope
0:10
Please enable Javscript
Ripping open a letter
0:09
Please enable Javscript
Sheet of paper being put inserted into envelope - paper rustling and slight crumpling
0:03
Please enable Javscript
Sheet of paper being put inside an envelope - fast.
0:01
Please enable Javscript
Letter post box flag put down
0:01
Please enable Javscript
Letter post box. open and close