== Oskar Concertina ==

Oskar Concertina is attached to the back of the smartphone with magnets.

<html5media height="360" width="640">https://www.youtube.com/watch?v=q0peQTYuEqs</html5media>

== Source ==

[https://gitlab.com/teamoskar/oskar_concertina gitlab.com/teamoskar/oskar_concertina]