uxcell Adjustable Headband Laptop Desktop Earphone Headphone 3.5mm Connector w Microphone Product Name : Headphone w Microphone;Frequency Range : 20-20 KHz;Impedance : 32 Ohms Sensitivity : -45dB +3dB;Connector Type : 3.5mm;Cord Length : 1.8M / 5.9ft Pad Diameter : 7cm / 2.8";Headphone Size : 14 x 17cm / 5.5" x 6.7" (W*H) Material : Plastic, Metal;Color : Black, Silver Tone Net Weight : 123g;Package : 1x Headphone w Mic