plastic case holds the included mini-jack to mini-jack cable

An insert in the plastic case holds the included mini-jack to mini-jack cable as well as the micro-USB cable needed. Considering how many different plug shapes there are for these micro-USB cable, it can’t hurt to carry one around with you. Additionally, the base of the case makes for a good stand for the speaker in some instances. The Cube has four rubber feet for stability, which also aids in absorbing vibrations, but as it’s not waterproof some care must be taken into account. And no doubt it would break if dropped on concrete from a few feet up — don’t use a short mini-jack cable for connecting it so you’re less likely to give it a shove if you move the mobile device while forgetting the Cube is attached.