What's the best Bluetooth aftermarket adapter?

[summersiguenza]

I'm doing some research on a good Bluetooth adapter so I can make calls/listen to music wirelessly in the car. Here's the top two that I've seen so far. Does anybody have any experience with either of these two products? Which one would you recommend?

Kinivo BTC450 (4.5 star rating on Amazon): https://kinivo.com/product/btc450-hands-free-bluetooth-car-kit/

TaoTronics (4.3 star rating on Amazon) http://www.taotronics.com/bluetooth-car-kit.html