Overview Signature™ Dual Mode Headphone. Amazing Quality. Stunning Sound. Superior Comfort! The ear-pad covers the ear completely to provide absolute sound quality as if your in your own world. Get ready for some Super-Bass! Features Built-In Mic - One click to switch between music and calls. Soft leather ear pads filled with foam for comfort and good attenuation of ambient noise. Premium refined contour with adjustable headband for personal preferences. Specifications Colour White Speaker Unit 40mm Driver Sound Pressure Level 105 ± 3dB at 1KHz Frequency Response 20 Hz - 20,000 Hz RMS 15mW Maximum RMS 150mW Impedance 32 ±15% ? Connectivity 3.5mm Stereo, Cable Length: 120cm with 30cm extension cable Cable Material Braided Nylon Microphone Microphone Unit:       6*2.7mm Sensitivity:                  -40 ± 3dB Impedance:                2.2K? Frequency Response: 30HZ to 16,000HZ