1.Two ears wearing, enhance comfort and clarity
2. The Ultra noise canceling Mic filters 80% background noise.
3. Broad Band audio frequency
4.Hearing protection with Active ProtectionTM technology
5. Ultra FlexTM MIC wires,boom rotation>20k times
6. Teflon washer increases stability and ensures optimal durability
7. Quick Link(QLTM ) function
8. Optimized for noisy official users and call center users