The Slussen from Urbanear is officially the tiniest DJ setup ever. Instead of a pair of Technics, a mixer, and a case full of vinyl, it lets you do play DJ right from your phone. Simply carry around the little splitter dongle on your keychain, pop it into your phone’s headphone jack, hookup your speaker and cans, and use the app, which comes out at the beginning of February, to mix and preview tracks. The little setup lets you take the tracks on your iPhone and craft a killer set. Whether your beats match up or sound like a train wreck is up to you.