Country of Origin: Sweden Designer: Teenage Engineering, Jesper Kouthoofd, David Eriksson, Jens Rudberg and David Möllerstedt and based in Stockholm. Dimensions: 232.5 x 284 x 57.5 mm Why is it Special? Teenage Engineering is a Swedish consumer electronics company and manufacturer founded in 2005 by Jesper Kouthoofd, David Eriksson, Jens Rudberg and David Möllerstedt and based in Stockholm. Introducing OB–4, the portable high fidelity loudspeaker with two 4'' bass drivers and a pair of neodymium tweeters that deliver crystal clear, open natural sound with 38 watts per channel — that's around 100 decibels of incredible sounding stereo. Listen using line input, bluetooth, FM radio and disk. The interface is minimal, with only the things you really need, yet if you look below the surface, there's a lot more than meets the eye. Have you ever wished you could instantly rewind when listening to the radio, to hear the title of the song just played? OB–4 continuously memorizes everything you listen to on an endless looping (rolling 2 hour recording) tape. Rewind, time-bend and loop at the flick of your fingertips. On purpose or by accident, instant rewind on radio is just one of the OB-4's magic tricks.