A first of its kind from Urbanears, Slussen is the most powerful after-party weapon known to man. Slussen is the combination of pocket-sized hardware and free software that allows you to take the party with you, wherever you go. To unleash Slussen, plug the adapter into your iPhone, iPod or other iOS device. Connect your headphones and sound system into the adapter via the two 3.5mm jacks. Launch the app, and that’s it.