Device nickel for those who have old cars without car stereo with integrated SD or USB slot. I can finally listen to my music, it works very well. Provided no manual, but it's useless, we find how easily parameterize with the keys and screen display. The transmission frequency is displayed (default 108.00), ultimately FM, I left as is.
A flat on the 12v plug, one bit long for our European cars, and it can happen by touching the device, he stops, forcing the rebouger to redo touch. This is not an MP3 and MP4 player as you can think, but - 6, I do not regret the purchase.