Flagship Bone Conduction Headphones - A New Way of Listening! 100% Ear Comfort: Open ear design avoids the discomfort of in-ear headphones with our bud-free headphones.Secure Fit: Enjoy your music without compromising your ability to hear important traffic sounds or sirens, promoting a safer driving experience.Convincing Crystal Sound Quality: Excellent music,podcasts and crystal clear hand-free calls are confidently guananteed！12 Hours of Music & Calls：Enjoy daily long continuous hours of music, calls and podcasts with our gen-3 Bluetooth headphones.4.3 inch-6 inch fit：If the back of your head's measurement from the left to the right ear is 6 inches or less, Cenplee bone conduction headphone is your perfect choice. 2024 Patented Revolutionary Headphones Bone Conduction Unparalleled 100% Open-Ear Comfort Using bone-direct technology to fully optimize the distance and angle between the earbud and your ear,our bone conduction headphone leaves your ears free while accurately conveying premium sound. 10X Seamless Snug Fit With Uncompromised Safety We invite you to enjoy every impressive beat all while staying fully aware of your surroundings.Engineered for who runs in the dark or on roads, where safety is paramount! Considerate Detail Design Pioneering 12 Hours Playtime Get up to 12 hours playtime with 30 mins quick charge support, our bluetooth sport headphones allow you to confidently focus on your daily fitness goals. IPX5 Water&Sweat Resistant IPX5 water resistant rating is technically designed for those sports people who always immerse themself in running,cycling and gym. Bluetooth 5.3 Technology Equipped with Bluetooth 5.3 technology, Open Buds provide stable wireless connectivity and reliable audio transmission.