cheap usb headset binaural call center usb headset with noise cancelling microphone
SPECIFICATION | ||||||||
| 1) Driver unit: 30mm mylar speaker | ||||||||
| 2) Frequency: 20-20KHz | ||||||||
| 3) Impedance: 150 ohms / 2.2Kohms | ||||||||
| 4) Sensitivity (at 1KHz): 105dB (+/-5dB) | ||||||||
| 5) Resonance frequency (Fo): 300Hz | ||||||||
| 6) Freqency response: Fo-6KHz | ||||||||
| 7) Max input power: 10mW | ||||||||
| 8) Mic sensitivity: -58dB or -40dB | ||||||||
| 9) Plug: 2.5mm stereo (or RJ 9 Jack / USB plug) | ||||||||
| OUR ADVANTAGE | ||||||||
| 1) Provide tailor-made products to meet different customers' needs | ||||||||
| 2) Strict quality control system. 100% inspection before delivery | ||||||||
| 3) Compatitively price with fast delivery | ||||||||
| 4) Customized logo or package is accepted | ||||||||
| 5) Payment by T/T , L/C or Western Union is accepted | ||||||||
| 6) Provide free sample for quality testing |