Ordered, delivered quickly (as always with Amazon), unpacked (because you could tell the poor workmanship, but oh well for the price) charged music of SD card is functioning. Tried radio works. Again switch impossible to SD card. Packed exchanged. 2.Versuch ..... expiration see above. Manufacturer written (if possibly a user error) until today no response. Now he is again packed and sent back. Here are 10 even too much Buy me another. Service from Amazon great as always! Of the "technaxx" products I keep my hands in the future.