Seg TV Tuner & Battery For The iPhone
Unlike most add-ons, the Softbank tuner doesn’t attach to the iPhone like a sleeve, but is a separate device that’s styled to look like the phone itself. And while it connects to the iPhone via a sync cable, it actually transmits the 1-Seg TV signals it pulls in via wifi. So in order to actually watch TV with the iPhone, you need to be in range and connected to a wifi network.