Not a bad price if you're in need of a solid Bluetooth FM transmitter. RRP sits around $50. I bought mine from Supercheap who also price matched.
-Smartphone, flash drive or Micro SD Card via your cars stereo through FM transmission
-Suitable for iPhone, iPad, iPod, smartphones and other Bluetooth-enabled portable devices
-Bluetooth hands-free phone calls with echo cancellation and noise reduction for clearer sound
-12v socket
-QC3.0 Fast Charge 3A, 2A and 1.5A
-Supports up to 32GB Class 10 Micro SD Cards
Have you compared this to the Roidmi 1s/2s or the Baseus one? I have both of those and whole passable it's not always a comfortable experience for the person who your speaking to, in that they can't make out what you are saying. I found the Baseus had a slight edge here, but even then at highway speeds it's unusable