Principaux produits:Haut-parleur sans fil/Écouteurs TWS/Radio DAB FM Alarme Colock Haut-parleur/Produits portables intelligents/Amplificateur d'enseignement
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.