Feature: 1. IPX6 professional waterproof. Sprinkleable and washable; 2. Hidden sealed charging design, no fear of sweat and rain, unrestrained exercise; 3. Bone conduction sound transmission, open listening, healthy and safe, no ear injury when moving. 4. Ergonomic design is adopted, the movement will not fall off, very balanced and stable, and the movement is not restricted. 5. The new bone conduction technology, the sound quality is amazingly upgraded, and the symphony surrounds the ears.
