Duo Slim is the latest edition to the Duo family of iPhone speaker and charging cases for the iPhone 7 and iPhone 7 Plus (backwards compatible to the iPhone 6 and 6 Plus). The case features a Hi-Fi docked speaker system, headphone jack, and backup battery.

Duo Slim vs. the Competition

The Headphone Jack is Back

Are you tired of losing your one set of Lightning earpods and not being able to use the 3 pairs of standard earphones you already own? Or did you lose your one converter cable so you can’t use your $300+ high-end wired headphones with your iPhone 7/7+?  No worries!  Use all your wired headphones again with the Duo Slim’s audio jack.  The case’s integrated Digital-to-Analog (DAC) converter also enhances iPhone audio for an amazing headphone audio experience.

Technical Specs

Dimensions = 160mm (H) x 71mm (W) x 21mm (D)

Max Volume = 95db

Peak Power = 3 watts

Battery = 2200mAh (iPhone 7), 3000mAh (iPhone 7 Plus)

Musical Life Enhancement = Unlimited

Duo Slim Prototype Demo