Elecom Bluetooth Bluetooth earphone wireless 13.6mm driver Semi-open type with a non-sealed fit / simple design with only one button With microphone FAST mUSIC F10I series black LBT-F10IXBK

FAST MUSIC(TM) label Bluetooth(R) wireless headphones with semi-open design for natural sound quality without muffling.;FAST MUSIC(TM) is an entry-level label that makes it easy to experience "surprisingly good sound" under the themes of cute, fun, and colorful.;The semi-open structure with ducts in front and back of the driver unit provides natural sound quality without muffling. Also, because they are not sealed, there is no sense of oppression even when used for long periods of time, and you can hear the sounds around you.;The silicone cover fits your ear and provides a stable fit. The silicone cover is removable.;The large-diameter φ13.6mm dynamic driver reproduces well-balanced, high-quality sound from low to high frequencies.