【Professional Swimming Earbuds】IP8 certified waterproof, dust-proof and sweat-proof headphones, listen to music freely while swimming and other sports. Patented fully sealed sound chamber design ensures that the headphones stay submerged for a long time. This earpiece is designed for sports, wish you enjoy life with this earphone. 【Real Bone Transmission】 The bone transmission headphones transmit the sound to the inner ear by vibrating through the cheekbones. Open Ear design helps ears get rid of any annoying ears for long time of music enjoyment. Avoid noise interference during voice transmission and maintain the accuracy of sound. 【Bluetooth Mode and MP3 Mode Changeable】This headset has two modes, you can connect to your mobile phone, and you can also record your favorite songs on the headset and play directly without connecting to other device (MP3 function). Built-in 32GB large capacity memory allows you to record more than 1500 songs inside. You can also use it as a USB flash drive. In-call stereo provides premium sound. 【8 Hours Battery Life & Bluetooth 5.0】Powered by advanced Bluetooth 5.0 chip, providing fast and stable connection to your phone or other devices. Compatible with your IOS and Android smartphones or tablets, Mac and PC computers and laptops. 【Light and Painless Wear】Ergonomic Open ear design, . Only 0.00 kg weight makes your ears unburdened. High-strength memory titanium alloy frame is flexible and durable, can be bent and stretched without deformation. All details were strictly controlled during production. Professional Swimming Real Bone Transmission Headset, Bluetooth Mode and MP3 Mode Changeable, Lightweight and Painless Wear, IP8 certified waterproof, dustproof and sweat-proof headphones, enjoy music freely when swimming and other sports. Excellent Waterproof Bone Transmission Earmuffs, Design For Swimming Professional True Bone Conduction Swimming Headphone