The mini chain had bought a blocking fault alarm in active mode. This is particularly unbearable, I can return the product after 1 month of use after having read the instructions in every direction. Amazon thank you for having taken without question. In addition, the chain has interesting features including MP3 and memory cards for a really low price. Acoustic side, do not expect the sound quality. This is the very low end with a little space in the mix just enough for a small room. And finally, it seems that the brand H & B is therefore not careful ...