I4U has posted a review on the Samsung USB powered 5.1 Surround Speaker

USB powered speakers are an interesting space and cable saving solution. The Samsung Trution speakers support 3D sound with a 5.1 channel simulation that is working quite well. The speakers provide 2x 0.4W power. The Samsung Trution 5.1 surround sound USB speakers are nicely made set of speakers that are visually attractive. The 5.1 surround sound simulation works well. USB Speakers like this are ideal for travel and connecting to a notebook.

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