... this product free value-added service.III. Accessories:Machine, charger, USB cable, earphone, certificate, instruction, the warranty cardIV. Specific parametersArticleSY1160, 4G, ... , classical, jazz, heavy bass variety of soundRecording functionFM functionSupportSpecificationsAccessoriesCharger, USB cable, earphone, certificate, instruction, the warranty cardMain control chipMORE INFROMATION, PLEASE ...