From San Francisco-based audio company HIDDEN comes a new metallic red, limited edition version of its Radio speaker. The simple, minimalist design of the compact speaker incorporates the power and volume control into the cap, giving the speaker a button-free design. Built-in Bluetooth, FM radio, and a 15-hour battery make this a great portable option. The new metallic red version is a nice addition to the previously monochromatic-only range and is available in a limited run of just 500 units. Get yours now from HIDDEN for $150 USD and use the code “RED500″ for free shipping.