Features: Experience clear sound with advanced sound guide tube technology that prevents sound leakage, specifically designed for bluetooth-compatible Smart Glasses to maintain private listening in public spaces. Soft silicone construction ensures secure antislip fit and long lasting comfort, featuring durability yet flexible silicone that adapts to various smart eyewears designs. Ideal for commuters, students, and professional seeking discreet sound solution during travel, work, or study without disturbing others. Perfectly suited for noise sensitive environments like cafes, libraries, or public transport where private sound immersion matters most. Quality silicone offer exceptionals wear resistance and antiaging properties, making these sound guide tubes for Smart glasses accessories enthusiasts. Specifications: Component: Silicone Option Type:Straight Head,Bent Head Straight Head Tube Length:Approx.50mm/1.97inch Bent Head Tube Length:Approx.45mm/1.77inch Color: black Practicality: The sound guide tube design effectively reduces sound leakage and improves sound quality transmission. It is suitable for various scenarios such as daily commuting, sports and fitness, and outdoor activities. Package Includes: 1pair Sound Guide Tube note: Please allow 1-3cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.