Despite the fact that G-Zip and G-Pop are two of the least expensive speakers we’ve tested, they’ve been designed to feel all but bulletproof—their ribbed plastic and rubberized sides are a carryover from G-Grip, which used its distinctive accordion-like shape to resist over 1,300 pounds of crushing pressure. Thanks to flip-out metal rings, G-Zip and G-Pop both look somewhat like grenades, each with a single silver and black speaker…
