Laboratory experiment: Listen & Download Laboratory experiment .mp3 Error! Change your browser, please! ⇓ Download Police whistle ⚠ Winch Gate ⚠ Items fall on the carpet. ⚠ The noise of the room, air conditioning, ⚠ Robot heartbeat ⚠ The sound of the bomb timer ⚠ Church, small crowd, organ plays ⚠ Squatting the Mat (1 second) ⚠ Balloon bursts ⚠ Take a towel from the heated towel rail ⚠ Open wooden box ⚠ Signal in the game, Buzzer ⚠ ★★★★★