Open-ear Bluetooth 5.4 wireless earphones combine innovative air conduction and bone conduction technology, effectively suppressing sound leakage with directional sound transmission. They offer 40 hours of long playback, plus a quick-charge function, IPX6 waterproof performance, and low latency, catering to various scenarios. Furthermore, the display makes it easy to understand the status at a glance. Thank you for viewing! There's also some great information! * Please be sure to check the profile before purchasing. * Brand new, unused! * Please refrain from unreasonable price reduction requests! * Free shipping * No dedicated listings. * We would appreciate a quick comment before purchase. * We will prioritize the person who purchases first, even during comments. (^^ゞ As per Mercari rules. #MarumiSpecialSaleItems ↑ There are other great deals available.