Thank you very much. Everything okay
The sound is clear, voluminous and loud with good detail. The bass sounds moderate, but comfortable. The device is sensitive to the quality of the recorded track. Reads a flash drive and memory card. The power button is located on the back. This is not a button, but a switch. I liked the design and circuitry. There is no English manual, although everything is intuitively clear. The seller sends the goods quickly and in good packaging.