Brand new Jedel Home & Office Noise Cancelling Stereo Head Set with Microphone 3.5mm Jack Black ref/365/am/ey Colour: Black Weight: 100grams Plug Type: 3.5 mm Stereo Plug Packing: Retail packing Bass Driver (mm): 30mm Impedance (Ohms): 2.2k Sensitivity (dB): -58+-3DB Frequency Response (Hz) 16-20mhz Lead Length 1.5m Lead Style Straight