Features: 1. Front chamber sound filter system, releasing high-quality sound 2. Rear cavity bass tube, effectively enhance the bass energy 3. Ergonomic design, comfortable to wear 4. Support multi-device connection, no pairing, no switching 5. Independent spatial sound effects, not limited to mobile phones and audio APPs 6. Deep noise reduction, bring comfortable experience 7. Bamboo fiber diaphragm, pure sound, silky experience