WalkBox-S1 is the thinnest portable speaker in the world, and designed for portable use. According to its official website, the device will work with any MP3, MP4 Player, cell phone or computer with a 3.5 or 2.5 mm headphone or line output socket. WalkBox-S1 has dual speakers to provide quality audio, suitable for use within a small radius, the speakers do produce a good volume, especially considering their size.  Read More →