RJ11 Telephone Headset Noise Cancelling Microphone Earphone Headphone For Desk Phones

RJ11 Telephone Headset Noise Cancelling Microphone Earphone Headphone For Desk Phones Features: Stylish design, lightweight, durable and comfortable for all day use Quick-disconnect function Adjustable metal headband can be adjusted Replaceable soft foam or soft leatherette ear pad optional Noise-cancelling microphone filters out background noise, so voice transmission is exceptionally clear. Bendable mic arm 330 degrees rotatable to be positioned for optimal comfort and voice transmission. Swing-sway feature lets you move the mic out of the way for beverage breaks Speaker and headband connection rotate 360 degree Specification: Speaker Sensitivity 108dB2dB/mw at 1KHz Speaker Frequency Range 200-4K Hz Microphone Frequency range 20-3000Hz Microphone Impedance 1505 Microphone Sensitivity -58dB3dB Maximum Power 10mW Material Metal, ABS and POM Package Included: 1 x RJ11 Telephone Headset (not include Telephone and Laptop) Detail Pictures: