The sound is great. I installed it in my Opel Corsa C. I was really amazed at how I could improve the sound by installing this car radio. Rich bass, clear highs.
The USB flash drive is extremely fast read and alluded to the songs quickly. No Problem.
The colors of the switch and the display can be independently change (whole color spectrum) and regulate the brightness, depending on whether car light on or off. Ideal for night riders like me! Personally, I've been looking for a car radio that I can adjust dark, even to the color of the display of your car. This I can well concentrate on the road and enjoy undisturbed music! Without the hassle or Geblinke Gefunkle the radio.
It's great: The Key beep can be turned off! How nice is that? That's what I wanted very long! This radio has the function!
All in all, fully and thoroughly recommended!
I did not, incidentally, requires the Bluetooth function, as I have my phone already connected via my navigator. Who Bluetooth still needed, ordered on top the next largest radio with Bluetooth function.