Yeatek Headsets 3280 is the standard RJ-modular version for traditional telephones, and also available in wideband versions for IP hard phones and soft phones. 

>>  Over-the-head Monaural versions.

>>  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.

>>  Adjustable headband can be adjusted 60mm.

>>  Replaceable soft foam or soft leatherette ear pad optional.

>>  Speaker and headband connection rotate 120 degree.

>>  Quick-disconnect function.

>>  The headsets are available with different microphones and noise-cancelling systems to match any work environment.

Specifications             

Material: Metal, ABS and POM

Speaker

       Speaker size: Φ27mm speaker

       Sensitivity: 108dB ± 3dB/mw(at 1KHz)

       Impedance 150 ohm +/-20%

       Frequency Response 200-3KHz

       Distortion: Less than 1% 

Microphone

       Omni directional Microphone

       Sensitivity:-36dB ± 2dB

       Impedance: 2.2k ohm

       Frequency response: 20-3kHz

       Distortion: Less than 1%

       SNR: ≥ 55dB

       ASP (Acoustic shock Protection)

       Directivity: Noise-cancelling