Hi-Res Audio stands for High Resolution Audio, representing high-resolution audio quality. The Hi-Res logo, often referred to as the "Little Gold Label," features a black design on a gold background. All Hidizs earphone products have received Hi-Res certification, ensuring that their audio performance meets the Hi-Res specifications set by JEITA (Japan Electronics and Information Technology Industries Association), guaranteeing high-quality audio. As per the JEITA specification, the analog audio frequency response must exceed 40kHz, while the digital audio sampling rate should surpass 96kHz/24 bit.