Described as the company's "travel/airplane" earphone in the Upgrader series, Altec Lansing's new UHS306 SnugFit Earphones with Microphone ($90) offer a more conventional shape and design than the less expensive UHS301 while preserving the same general features. You get a pair of microphone and call button-equipped earphones with silicone tips, fabric cables, in-line volume and mute controls, and an iPhone-ready headphone port plug, as well as…