Professional customer service headphone is perfectly suitable for for customer service, business and office. With noise reduction technology, it delivers stereo sound quality cutting off ambient noise during your work.<br><br><strong>Features:<br>[Clear Communication &amp; Noise Reduction]</strong><br>With noise reduction technology, it delivers stereo sound quality cutting off ambient noise for clear communication.<br><strong>[Hands-free Call]</strong><br>With adjustable microphone, hands-free function brings much convenient and enables you to improve working efficiency. <br><strong>[Adjustable Headband]</strong><br>Adjustable headband can be adjusted according to head size. You can rotate the mic for convenient sound pick up.<br><strong>[Adjustable Microphone]</strong><br>Adjustable microphone can bend forward and backward for better and clearer communication. <br><strong>[Application]</strong><br>Stereo customer service headphone is perfectly suitable for customer service, business and office, etc. <br><br><strong>Specification:</strong><br>Model: 400P<br>Mic: <br>Impedance: 2.2kohm<br>Frequency Response: 20-16,000Hz<br>Sensitivity: -47Db+-1Db<br>Speaker:<br>Distortion: 1% Max<br>Impedance: 150ohm+-10%<br>Color: Black<br>Item Size: Approx. 15 * 14 * 4.7cm / 5.91 * 5.51 * 1.85in<br>Item Weight: Approx. 79g / 2.79oz<br>Package Size: Approx. 20 * 17 * 6.5cm / 7.87 * 6.69 * 2.56in<br>Package Weight: Approx. 80g / 2.82oz<br><br><strong>Package List:</strong><br>1 * Customer Service Headphone