Features 1.Healthy Fo Ear Prevent hearing loss from long time listening Prevent the growth of bacteria in the ear canal 2.True Bone Conduction Earphone 10m Waterproof for swimming 16G Memory/4000 MP3 in pocket Open ear Design BlueTooth 5.3 10 Hours Long enduranc 3.Made for Swimming It can go to a depth of 10 meters under the water. It is designed to prevent falling during swimming And concentrate on swimming. 4.Made for Sports Fearless of sweat and rain IPX8 Waterproof, The whole body is waterproof It supports more sports scenes and is not afraid of bad weather. 5.Wearing Securely Ergonomics, close to ear design, not in ear, Painless and more comfortable to wear for a long time, The ears will not be swollen or sore after long-time running. 6.Continuous listening to music for 10 hours Continuous listening to music for 12 hours to meet the needs of one day's sports Small size, large capacity, 180MAH large capacity low-power battery, with low-power chip Make headphones last longer 7.360 ENCLOSED DESIGN Two innovative technologies to effectively avoid sound leakage Take care of privacy and no sound leakage 8.Magnetic charging Enhanced Waterproofing Extended life Magnetic charging black Technology 9.Comfortable fit Wear glasses without pressure True bone conduction enables, You can hear the sound of the external environment when riding, making sports safer. Streamlined and sunken design fits the ear shape. 10.NO DEFORMATION Memory titanium alloy Bending without Deformation Memory titanium alloy 360 dending whithout deformation 10000 bend test,durable and Very elastic