Twelve years have passed since Griffin released its first iTrip, a breakthrough FM transmitter that enabled iPods to send music wirelessly to car and home stereos. The original model, a glossy white housing that sat atop early iPods like a tube of Chapstick, effectively defined iPod accessories for an entire generation of early adopters. And it was fun, too: using an radio antenna and brilliant software, iTrip could flood an empty FM radio channel with iPod music, acting like a pocket-sized pirate radio station.

Everything changed when the FCC cracked down on FM transmitters, forcing reductions in broadcasting power that made iTrips (and numerous competitors) sound staticky, reducing their appeal. Around the same time, Apple and car companies transitioned to better-sounding solutions — Bluetooth and aux-in audio ports, respectively — leaving FM transmitters with fewer customers. But Griffin is rejuvenating the iTrip family with iTrip Bluetooth, aka iTrip Aux Bluetooth, which provides a different type of dead-simple wireless solution for cars. Priced at $50 but available online for $38, it has one purpose: to receive Bluetooth audio sent by your iPhone, iPad, or iPod, conveying it through an included 3.5mm audio cable to your car’s aux-in port…

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