More Details:<br><br><br><br><br><br><br>Specification:Brand Name: OneplusEarphone Type: In-earSpeaker Unit: 11mmUnit Type: DynamicWired Control: YesWinding Material: Copper clad aluminumDistortion: &amp;lt;0.5%(1000Hz， 1mW)Horn Impedance: 32&amp;Omega;Product Net Weight: 15gSensitivity: 115dBPlug Type: 3.5mmRated Power: 5mWFrequency Response: 20-20kHzOptional Color: Grey， Gold.<br>Package Included:1 X Oneplus Dynamic Headphone