Features: Using advanced noise reduction technology, can effectively reduce environmental noise up to 85% Comfortable wearing design, ergonomic headset structure, equipped with soft memory foam pad ear cushions, long time wearing without pressure, weighing only 250grams Wide ranging of compatibility; USB interfaced for a variety of operating systems, not need additional driver With in-line control device, support for voice adjustment and mute function, simple and fast operation. Especially suitable for customer service personnel who need to respond quickly, enhancing work efficiency, avoid the inconvenience of frequent operation of the computer. Specifications: Earphone: plastic and metal Ear cushions from soft leather for comfortable wearing Parameters: frequency response ranging 20Hz-2kHz impedance 32Ω Sensitivity 105dB±3dB Size: The headband is adjustable, suitable for wearing different head types Color： elegant black binaural design/ black single headset Connection：USB Practicality: noise-cancelling microphone suitable for customer service, online meetings, game and other scenario Package Includes: 1PC USB Headset note: Pay attention to the selection option:Single headset/double headset. Please allow 1-2cm errors due to manual measurement. Pictures may not reflect actual color due to different monitors.