As the audio commences, the sound of air being forcefully propelled into a plastic bottle fills the space. It's a familiar sound, reminiscent of when one blows across the top of a soda bottle, possibly cola, to create a hollow, resonating noise. The blowing is not constant, rather it's more like a series of gusts, each producing a varying tone as the air interacts with the bottle. The sound is somewhat playful and whimsical, not unlike a DIY wind instrument. The plastic bottle, likely empty, adds a unique timbre to the sound, slightly muffled yet clear.