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I actually bought a travel guitar, and that guitar is really cool. You can actually fold the guitar, and you can plug headphones into it, but it's acoustic, or semi-acoustic.

"Spotify CEO Daniel Ek Talks Royalties, Social and The Future". Interview with Eliot Van Buskirk, evolver.fm. February 10, 2012.
I actually bought a travel guitar, and that guitar is really cool. You can actually fold the guitar, and you can plug headphones into it, but it's acoustic, or semi-acoustic.