["brand new and high quality 　\nFeature:\nPowerful and clear sound in unique design.\nUse this for a video conference.\nSuperior clarity for voice. Notice:\nThe Micphone cannot connect with Computer or for smart phone directly .It have to connect with loudspeaker for Using !!!\nThis is for Head Wear Type Micphone ,for Head Mounted Micphone .\nOnly Micphone !!!\nNot with earphone ! Please be attention !!! How to use:\na directional microphone, make sure the microphone above two holes (sponge to the next can be seen) with the mouth,\nthe most suitable distance away from the mouth microphone is 10-15MM\nthe microphone plug into the corresponding receptacle on the host computer (not into the audio input jack hole)\nin order to achieve the best results, it is recommended to use the original microphone\ntry to avoid multiple spots microphone plug, side cause poor contact Specification:\nMicrophone core size: Φ9.7 * 5.0mm\nSensitivity: - 52db ± 2db\nDirection:One-way\nOutput impedance: ≤ 680Ω\nOperating voltage :1.0V-10V\nFrequency Range: 20-22kHz\nSNR: ＞55db\nConnector size:3.5mm\nWire length:100cm/39''(approx)\nMaterial:Plastic\nColor:Black\nQuantity: 1 set\nNote: Transition: 1cm=10mm=0.39inch No retail package. Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect  the actual color of the item. Thank you!"]