Until now you could listen to satellite radio in your car and your home, but not on your morning run—unless you were willing to strap on a boom box. But the versatile new 7-ounce, $350 Delphi XM MyFi is the first satellite radio receiver with a built-in battery. Think of it as a SkyPod. Afoot and about, you use the MyFi with its lackluster earphones or your own better ones. Under battery power, getting a signal from a satellite in the southern skies can be a problem, particularly indoors. Even in my south-facing Seattle office the device usually resorted to XM's terrestrial repeaters, which are rarely available outside urban areas. A clip-on antenna improves reception somewhat but adds one more dorky wire, and it didn't prevent occasional audio dropouts when tall trees on my stroll obscured the southward view.
展开▼
