This is a handy item for my 2010 prius that does not have a bluetooth connection. Once set up it connects quickly with my phone once the car is started. Bluetooth automatically connects.

Music sounds good, at adequate volume, with no dropouts while driving. Decent sound and good charging. Sound quality is great and connecting is immediate 9/10.

It's not perfect but does it make my 2007 porsche up to date…. My car has a bose system with fiber optic cables for speaker wires. I love it, and it makes my late-model car a happier place.

I assume there was a manufacturing update that ruined the usability of the item. I hope to update this review with a video of poorly performing #4 and the cheap no-name working flawlessly. Tried to obtain manual or support from roav website.

This transmitter hisses constantly to the point where it is not possible to even tell what is being transmitted. This device distorts the audio so much with static that it's painful to listen to.