Robot heartbeat: Listen & Download Robot heartbeat .mp3 Error! Change your browser, please! ⇓ Download Wooden whistle ⚠ Unlock the bike lock ⚠ Soldiers pass by ⚠ Shower curtain opens, closes ⚠ Harvesting machine ⚠ Suction effect, Wet ⚠ Plate, Piggy bank, pot, cup breaks ⚠ Squatting the Mat (0.5 seconds) ⚠ Parachute deployment ⚠ Squatting the Mat (1.5 seconds) ⚠ Opening, closing the umbrella ⚠ Kick on the door ⚠ ★★★★★