Lightweight and comfortable bone conduction headphones HS2, designed to let you enjoy music while still hearing ambient sounds. - Color: Black - Type: Bone conduction headphones - Model: HS2 Thank you for viewing. There are no issues for everyday use. Please refrain from purchasing if you are sensitive to items stored by a non-professional. Bone conduction earphones bluetooth with microphone, bone conduction earphones bluetooth waterproof sports earphones, running training cycling, open-ear earphones, bone conduction wireless earphones, bluetooth earphones, Type-C fast charging, 8 hours of continuous use, bone conduction headphones