HliFi stereo subwoofer - The latest audio analysis technology, high frequency, intermediate frequency, low frequency can be clearly presented, bringing better sound quality. NC noise reduction - The dual microphones can communicate clearly, effectively isolating environmental noise, and can communicate clearly even in crowded streets. Compound diaphragm - The treble is transparent without distortion, the bass is thick and pure, and the sound quality is delicate and pleasant. Dual independent chips - After the headset is successfully paired for the first time, take out the headset again to automatically pair, and quickly connect without waiting. Silicone cavity - Unique headphone head design, not only can reduce noise, but also comfortable to wear. Ergonomic design - Stable and comfortable to wear, you don't have to worry about earphones falling when you travel.