Sanag A11S Bone Conduction Second-generation Air Conduction Headphones(Black Red)

1. Bluetooth version: V5.1 2. Battery capacity: 170mAh 3. Frequency response range: 20Hz-20KHz 4. Transmission distance: more than 10 meters 5. 8h endurance, IP67 waterproof and dustproof 6. Upgraded second-generation air conduction technology, with large-size diaphragm, sound quality Increase again, the bass is strong, so that every song is full of rhythm 7. With 32G Memory