First, I have the DAB 4.1 ordered Warehouse Deals: The display switched off after a few minutes and was not re-enable - so back. Then I have the DAB 5.1 ordered Warehouse Deals: The on / off switch was broken - so back. Then I have the DAB 14 ordered from amazon: Basically, no errors have been recognized. The tuning and volume switch have but a poor tactile feedback and the scrolling text on the screen is so bad that you can hardly recognize what (was with DAB and DAB 4.1 5.1 better). Perhaps it is also a Deffekt but because the device (for now) otherwise verreichtet his service, I have no bock, this also now convert again.