Features:
>Monaural headset
>Noise-cancelling microphone
>Broadband headphone with noise-proof effect
>Quick-disconnect (QD)
>Adjustable headband
>High-Fidelity, up to restore 99% of the original sound
>High-tech protection circuit can prevent hearing impairment
>Stylish design, lightweight, durable and comfortable for all day use
>Flexibility in adjusting: ultra-soft microphone tube with 300-degree rotation

Other Details:
>Special Treatment for frequency of inserting and plucking the crystal head
>Robust design with special material for day after day durability
>Tensile strength reaches to 30 kg and bending ability up to millions of times

Type:   
1. RJ09--Connect to Dialer or telephone, IP Phone, USB sound card adapter                                                             
2. RJ09 connect to QD—Connect to Dialer or telephone, IP Phone, USB sound card adapter
3. 3.5mm Plug—Connect to PC