Description Earcup Stereo Headphones w/Boom Microphone & 3.5mm Jacks (Black)   ****  BRAND NEW, Sealed, Never Been Opened  **** For All Of Your Computer Needs! --   We Sale All Brands name, Highest Quality, Lowest Prices, (See my feedback we have a lots of satisfied customers)! This headphones with microphone headset is ideal for video conferencing! With comfortable padded earphones you'll be able to wear these headphones for hours! Have a net meeting or just chat on IM in comfort! Order today!     Features/Specifications:     Professional Headphones with Headset Microphone   General Features: Black color Padded headphones Speaker: 40 mm dynamic type Impedance: 32 ohms Sensitivity: 96 db± 4 db Frequency: 20 - 20000 Hz Max. Input power: 100 mW Volume control dial Cord length: 5.91 feet (1.8M) approximate   Headset Microphone: Condenser Type Headset Microphone Omni-Directional polar pattern Sensitivity: -40 dB ± 3 dB Frequency: 50 - 1600 Hz   Package Includes:     Professional Headphones with Headset Microphone   Additional Information:     Requirements: Two (2) Available 3.5 mm audio jacks