This is a really cool project from artists Bas Horsting and Luciano Foglia. Check out the trippy site they made for their project here.

Five sounds travel across the silent path of global mail.

Five artists send a message across the world, to be heard by those who are not allowed.

Like an inverted envelope, this mail’s message lives on its outside, surprising accidental listeners by randomly bursting out to their unprepared ears.

A travelling sonic graffiti, directed to no-one in particular, and somebody in particular at the same time: each artist chooses a recipient, and thereby more or less defines the path the ambulant art piece will travel, yet never knowing how and where exactly it will go before reaching its destination.

When it is reached, each box becomes an autonomous miniature sound installation.

We choose to provide the platform only. We do not control any content. We do not provide any artistic framework but what’s described above.

Each box contains a speaker, a couple of batteries to make it last for at least two weeks, and a small chip, of the type usually associated with greeting cards, hacked so that it executes a custom program, containing one or various sounds, loops, random bursts, and silence.

Within the constrained boundaries of the chip’s possibilities, each artist has total freedom to create whatever he desires: spoken word, music, abstract soundscapes, avant-garde, noise, unmusical meditation or unconscious dialogues.

Read more.