1. 6mm speaker, excellent sound quality
2. One-button remote control, switch calls/songs
3. Gold-plated pins, stable transmission without noise
4. Aluminum alloy shell, pull-resistant TPE wire
5. L/M/S size three pairs of ear caps
6. Material: Aluminum alloy + TPE
7. Speaker diameter: 6mm
8. Speaker sensitivity: 95db
9. Frequency response: 20Hz-20KHz
10. Impedance: 32 ohms
11. Cable length: 1.2m