The audio titled "Metal Explosion Sound 4" begins with a sharp, resonating boom. This sudden burst of sound is reminiscent of a metal can being abruptly crushed or popped open. It carries a distinctive 'klang' that is characteristic of metal objects, echoing and reverberating briefly before fading away. The sound is similar to a tin can being manipulated, adding a unique pop to the overall metallic symphony. The audio ends with the lingering echo of the initial explosion, leaving behind a trail of metallic resonance.