I quickly encountered a problem of poor contact with USB microphone (the one where just connect the charging cable for storage) but is, it does not lempêcher load in a certain position ...
But alas, it is now the battery itself, which no longer fulfills its role. Even after a suitable mains loading with 4 LEDs lit witnesses, it collapses very quickly within 20 minutes without providing a suitable load.
After the excitement of the early days, I am quite disappointed by the quality of the final product. Too bad because on paper it had everything to please me ..: /