PERI Duo [$99 early bird pre-order] solves the two greatest needs of every smartphone user – extended battery power and amplified sound. It creates an immersive audio experience loud enough to fill a room, the PERI Duo also integrates a 2500mAh battery, providing more than a full charge to your smartphone. Currently pre-selling on Indiegogo, the Duo has already surpassed half of its fundraising goal.

Pre Order: Indigogo