K7 Bone Conduction Waterproof Open Ear for RunningDiving WaterGymGray blue

Feature: 1. Using bone conduction technology to transmit music through your cheekbones to ensure that your ears are fully open to environmental sounds, making exercise more secure. 2. Bone conduction Bluetooth headset is the highest waterproof grade IPX8, designed for long‑term use in water. Designed for swimming, running, fitness, exercise and other sports. 3. Built‑in 16GB memory, can store about 4000 songs, avoid putting your phone in your pocket during exercise. Can be used as MP3, play songs stored, and listen to songs without a mobile phone during exercise. 4. The earphone transmits sound through the cheekbones, you don t need to put the earphone in your ear to protect your hearing, you can hear the surrounding sound. 5. Advanced Blue