To provide a polyamide resin integrally molded product having high joining strength and excellent joining reliability, and a method for manufacturing the same, and also to provide a joining auxiliary capable of mutually joining polyamide resins with high joining strength. The textile material allows to optimally adapt shape and shape dynamics as well as biocompatibility to the respective characteristics of an individual ear canal. The battery monitoring circuit also includes a low counter that increments when the sense voltage measurement is below the threshold. A pivoting device that pivots the blower tube is provided. If the protection threshold stress is exceeded, a gain applied by a gain component is selectively adjusted to modify the input audio signal. In addition, a file format can be used that can contain multiple language specific resources and can facilitate retrieval and access of individual language specific resources by the relevant language independent code.