X7 Pro Head-mounted Computer Headset Wired With Microphone Low-latency Stereo Audio Gaming Headset With LED Lighting Features: This earphone is wired computer earphone, suitable for family desktop computer, Internet cafe, Internet cafe. Ultra thin speaker diaphragm, surround sound, high quality design High sensitivity noise reduction microphone design, retractable shipping mark pole, more accurate, clear and smooth voice transmission; With its own extension rod, it is convenient to adjust the tightness of head wear and adapt to different groups of people; Soft cloth earmuff and single cloth sheath head pad, with fine-touch and comfortable wearing; The volume dial can be adjusted to make the sound as you wish: With microphone switch function, on / off Specifications: Speaker diameter: 40mm Impedance: 20dhm +/- 15% Sensitivity: 100db +/- 3db Frequency: 20-20000Hz Microphone size: 6. * 2.7mm Microphone sensitivity: -42db-b +/- 3db Microphone impedance: 2.2 kohm Directionality: Omnidirectional Headphone jack: USB +1 X3.5mm Jack cable length: 1.9m +/- 0.2 Package content: 1 X Gaming Headset