Built for the job / construction site, the Bosch Power Box 360 is one tough radio / sound system. It was first introduced in 2004, but has been updated with two new models that retain the signature roll-cage design. Both have a 5 speaker design with an integrated sub woofer. They have a special weather proof media bay for your MP3 player, as well as a powered USB port. The PB360S retails for $199 and is currently being rolled out on shelves nationwide as I type this. The PB360D (includes a remote, Sirius port, backlit display, GFCI outlets, more sound power output) will be available starting late July for $249.
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