Color: Red + WhiteConnector (s):3.5 mm JackEarpiece: DoubleDriver Unit: 40mmImpedance: 32ohm±15%Sensitivity: 120dB±3dBFrequency response: 20-20000HzMax imput power: 50mWMic frequency range: 20-20000HzMic sensitivity: -58dB±3dBWireless Technology: wiredCord length: 2.1mHi-Fi Speakers， was developed with the ideal of sound qualityThe brief and fashion design and exquisite from EuropeFull vegetable tanning material， comfortable for wearingExtreme lightsome body， sharply reduce the burden of a long time wearingAdopt sound smart microphone noise cancelation tech