1,hotselling model 2,good quality 3,Noise cancelling 4.factory price 5.one-stop service,drop shipping,fast delivery Product IdentifiersBrandOEM/ODMModelheadphones STcolormore colors available FeaturesFit DesignHeadband/headsetEarpiece DesignEar-Cup (Over the Ear)Sensitivity115 dBFrequency Response20 Hz - 20 kHzImpedance40 ohmsColorBlackFeaturesClosed Back, Noise Cancellation, Noise ...