All of today’s speakers have several things in common. They’re all built primarily as Bluetooth wireless speakers with support for Bluetooth 2.0 and newer devices, which is to say that they’ll work in wireless mode with all iPads, all iPod touches and iPhones except the original models, and even the latest seventh-generation iPod nano—reliably at 30-foot distances, sometimes longer. Each has an auxiliary 3.5mm wired option…
