Flexible Replacement: Three sizes of interchangeable soft, silicone earbuds provide maximum comfort and a secure hold. The earbuds are smooth, dirt resistant and featured with self-stretch deformation.
Freebit Certified: Adopt the ergonomically C-shaped Freebit ear interface. Comfortably fit your ear canal and let your earphones stay in place without producing any pressure.
Noise Isolation& Acoustics Improvement: Effectively block outside noise and improve sound quality, make the sound loud and clear, keep you away from environmental disturbances and enjoy great sounds whenever and wherever possible at the same time.