On-ear headphones are all the rage right now on the streets, and in this particular niche of the market, style and usefulness are even more important than actual audio performance. And style and usefulness are really the strong points about the Fly, which marks Gigabyte's entry on the audio scene. It's extremely light (only 2.7 oz or 79 g), plus it features a thin retractable headband and two 40-mm drives that are responsible for a deep bass response. We'll start by describing the product and then we'll see how it fared during the test.