Boombotix is a San Francisco based company who originally started developing portable speakers for urban cyclists as an alternative to headphones. They currently have a Kickstarter project for a new speaker called the Boombot REX. The REX is an ultraportable 2.1 speaker system with a rugged ABS plastic body and a built in noise canceling microphone. It also features fully interchangeable grills, belt clips, Siri integration and is water-resistant so you can use it outside in rain or snow. The REX connects to iPods, smartphones, tablets, and laptops using wireless Bluetooth technology and is powered by a rechargeable medical-grade lithium-ion battery that provides 6 hours of play time. The project has already far surpassed the original funding goal, so a $80 pledge will reserve your choice of a Black, Blue or Green REX Boombot.