A record of the music that was actually around you

It listens so you don't have to Jackal runs in the background and logs what was playing, with when and where. You don't have to catch the song in time.

A map of what you heard Every song is pinned to the place you heard it, so your history is a map — not just a list.

You decide when it listens Background listening is off until you turn it on, and you can stop it at any time. Jackal only ever looks for music.