In short, the device has the same flaws as the Yatour, plus a few more.
On the one hand there are the interferences that occur when accessing the storage media, and are to hear clearly at the switched off engine (regular "meep, meep, meep" in time with the flashing of the LED USB).
Secondly song beginning with some songs are simply cut off (1-5 sec). I use the LAME MP3 encoder, the fact everyone uses. (No VBR after notice by the Seller. In 2015 support in the price? Uh, ok.) Was tested with VBR and CBR files
It occurs as well when Yatour on a click when switching between songs. That appears to be related to the ingestion, because if a song is played correctly, no click occurs. Some MP3 be played for any reason at half speed, length seems to have no role. Such a song is, for example, ~ for 6 minutes, but other 6, 7, 8, 10 minute long songs will be played normally.
The unit reads the files in the order in which they were _kopiert_ to the memory. Well, strange, but make all the devices of this type. The file name should therefore play no role, since it is not sorted then. Nevertheless, this device is the only swallow at all non-ASCII file name (in my case: Japanese character) (and most expensive!). The files are simply skipped. Once they were renamed, it works again. That can not be true!
On the edge: Shuffle is supported as long as it is supported by the radio, as well as in my case.
Conclusion: Price is not justified. You get half the money for the exact same thing - if you can live with the rest of quirks. It may be that my standards are high, but if a Clip + Mp3 player (by the way, far more codec support) for ~ 40 manages hinzukriegen an almost perfect reproduction, should a 99 product (or half as expensive equivalent) is also can.
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Addendum 07:03:15
As it stands, the unit has (just like that of anycar and YATOUR) a problem with high bitrate MP3s. Since this unit with the seemingly identical from Yatour, it's no wonder.
When using encoder LAME in "-V2 --vbr-old --strictly-enforce-ISO", it works. About 256kbps will not be playable from the beginning. The decoder probably seems to have too small a buffer and therefore comes under special circumstances to a halt. For example, if there is a peak bit rate at the beginning of the song. I can only come from a lack of quality control in the design of the device.
Etc. Who MP3 from Youtube used should not have any problems.