Goal Zero Rockout2 is the latest portable speaker available in the market right now. The Rockout 2 is a portable speaker that features stereo full-range drivers, each kicking out up to 3 watts of sound with a frequency response of 100Hz to 20KHz. Simply connect it on your device using the 3.5mm audio jack and enjoy a high quality audio with this new gadget. The RockOut2 acts as both a speaker and a carrying case for your phone, with a hidden interior compartment for you to keep your phone in. It has also audio control buttons, a USB charging port and a hookable elastic cord on the back that makes it easy to lash it to the outside of a bag or other objects. Battery life is exceptional – providing up to 20 hours of playback on a 3 hour charge. GoalZero sells the RockOut2 for $59.99(USD) and its available now in a variety of colors including green, black, blue, red and camp color options.