Features: Elevates experience with D163480 For Bone Conduction module,delivering highly auditory sound not blocking ear. This For Bone Conduction unit boasts a lightweight and comfortable, perfect for extended wear. Ensuring that anyone can enjoy their favorite sound in a unique and innovative way. Whether you're commuting, exercising, or just relaxing. this For Bone Conduction module allows you to stay aware of your surrounding while listenings to auditory. Upgrades your headphone accessories with the D163480 and immerses yourself in suround sound experience that connection to the world around you. Specifications: Item：For Bone Conduction Module Component: Metal Model：D163480 Size:about 16.3x16.3mm/0.64x0.64in Package Includes: 1PC For Bone Conduction Module note: Due to the problem of lighting effects there is certain tolerances in product, please understand. Please allow 0-1cm error due to the measurement.