Product Features Maximum compatible headphones dimensions (case inside): 5.51 x 4.33 x 2.55 inches (14 x 11 x 6.5 cm). Engineered ultra-hard shell protects AfterShokz Wireless Bone Conduction Headphones against drops, impacts or crushes. Internal mesh pocket conveniently stores cables, cords, chargers, AMP, earpads, adapters, and other accessories. Case Compatible with aftershokz xtrainerz, AS700, AS700BD, aftershokz aeropex, AS800, AS800BE, AS800CB, AS800LG, AfterShokz Air, AS650, AS650MB, AS650FG, AS650CR, OpenRun Pro - Premium Headphones case. A good replacement or upgrade of original headphones case. If the case doesn't fit or break within one year, Geekria will replace or refund. No question asked. Product DescriptionProtect your in ear or on-ear headphones with a hard shell headphone case from Geekria! Compatible Headphones: - Compatible with AfterShokz OpenRun Pro, Xtrainerz, AS700, AS700BD case - Compatible with AfterShokz Aeropex, AS800, AS800BE, AS800CB, AS800LG case - Compatible with AfterShokz Air, AS650, AS650MB, AS650FG, AS650CR case - Compatible with AfterShokz Xtrainerz Open-Ear MP3 Bone Conduction Wireless Sport Headphone case. - Compatible with AfterShokz Aeropex Open-Ear Wireless Bone Conduction Headphones case. - Compatible with AfterShokz Air Open-Ear Wireless Bone Conduction Headphones case. - Compatible with AfterShokz OpenRun Pro - Premium Bone Conduction Headphones case. And many other headphones. Note: - Headphones carrying case only, Xtrainerz headphone are not included. - Colors shown in pictures may slightly differ from actual product due to lighting and color settings.