Principais produtos:Alto-falante sem fio/fone de ouvido TWS/alarme de rádio DAB FM Colock alto-falante/produtos para uso inteligente/amplificador de ensino
I having used them for the first time find the musical quality to be fine. Only problem is that they squeeze my ears too tight. Causing discomfort after a short period of time. They may be suitable for kids. Definitely not adult use.