Direct Connect Over The Head Headset No Additional Applifiers / Adapters Required
Soft Leathered Ear Cushions For All Day Comfort
Superior Quality Sound with the Flexible Adjustable Microphone
Noise-cancelling microphone filters out background noise so voice transmission is exceptionally clear.
Quick-disconnect feature provides an easy way to step away from the phone without disconnecting the call or even removing your headset. A 10-foot cord gives you a generous range while you're connected.  

QD-RJ-A
QD-RJ-B
QD-RJ-C
QD-2.5mm
QD-Single 3.5mm
QD-Dual 3.5mm
QD-USB 

Driver Unit                  1×30mm
Frequency Response 20-20kHz
Impedance                  150  ohm
Sensitivity                    125dB
Max input power          10mW
Plug                            QD（Quick-Disconnect）