1. Open Ear Headphones Our bone conduction earphones use wireless bone conduction technology to transmit sound through the cheekbones, bypassing the eardrums and reducing the risk of hearing damage. The open-ear design reduces pressure on the ear and avoids the pain sometimes caused by traditional hard plastic wireless headphones. 2. Stable fit Titanium alloy frame provides strength and durability while weighing 27 grams. The surface is covered with a non-slip silicone outer layer to minimize pressure and keep a stable position during intense exercise. 3. IP68 and 32GB internal memory With an IP68 waterproof rating, these headphones are submersible to depths of up to 3 meters and resistant to sweat and dust. The 32GB internal memory can be converted into an underwater MP3 player, keeping you motivated during swimming or long underwater activities. 4. Bluetooth 5.3 and 15H battery life Equipped with Bluetooth 5.3 and a bi-directional microphone, delivering faster, more stable transmission with reduced latency. Magnetic quick charging reduces wear on charging ports. An 180mAh Li-Ion battery provides up to 15 hours of continuous music and calls. Use scenarios - Swimming or pool workouts with underwater playback and memory for music. - Running, cycling, or gym sessions with a secure, open-ear fit. - Daily commuting or office use with hands-free calls and ambient sound awareness.