Not too long ago, I took a look at the Griffin iTrip AUX Bluetooth dongle. It was a solid product that delivered on its goal of allowing people to connect over Bluetooth in cars that don't have the functionality built-in. But at $49.99, it's a little on the pricey side. For that cost, you can get a Kinivo BTC455 that not only delivers the same capability, it supports two devices at once, hands-free calls, and controlling music playback. Frankly, it's more bang for buck.

That said, after trying out the Kinivo BTC455, I occasionally longed for the Griffin iTrip AUX. Let me tell you why.

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