Stereo Headphone Earphone With Mic 1.Compatible with 3.5 connecter sources 2.Frequency response:20-20000 Hz 3.Adjustable mic Stereo Headphone Earphone With MicFeatures: Color: Black Weight: 217g Size:19 x 16.7cm Mic length: (about)8.2cm Speaker Diameter:20mm Frequency response:20-20000 Hz Sensitivity:110dB Impedance: 32/Hz Cable length: ≥ 230cm Maximum power input 80mw Plug:3.5mm Loundhailer:40mm ...