To meet users’ demands for comfort and durability in diverse scenarios, bone conduction headphones are rapidly evolving toward ultra-lightweight, high flexibility, and high waterproof performance. The latest mainstream products weigh only 25–28 grams, adopting aerospace-grade titanium alloy memory metal frames and medical-grade skin-friendly silicone materials, which can fit the head contour perfectly without causing pressure even after long-term wear. In terms of durability, IP68 dustproof and waterproof rating has become the standard configuration for mid-to-high-end products, enabling stable operation in harsh environments such as swimming, heavy rain, sweat immersion, and high-intensity workouts. Manufacturers have also optimized the structural design and sealing technology to ensure that the headphones can withstand extreme temperature changes and accidental collisions. These upgrades have broken the usage limitations of bone conduction headphones, making them suitable for daily commuting, fitness, outdoor adventures, and even professional sports scenarios, greatly expanding the market application scope.