Review on Portable acoustics Sony SRS-XB13, beige by Michal Michal ᠌

It is also not superfluous that you can use it as hands free thanks to the built-in microphone, but I recommend turning the volume down. Some pros: Lightweight and compact, protected from dust and moisture. Most importantly, with such weight and dimensions, it is difficult to imagine more powerful bass. Its cons: There is a peculiarity: the entire spectrum of sound is transmitted only in the direction of the speaker cone, and if it is turned to the side, part of the frequencies is heard noticeably worse. In addition, 16 hours of operation at full power is not observed.