Deluxe Hi-Fi Super Bass Headphones, 2" Super Thin Diaphragm, Open Back Adjustable Headstrap, Cushioned Oversize Earpiece, Impedance: 32 Ohms Nominal, Frequency Response: 20Hz-20kHz, Sensitivity: 102dB SPL @ 1kHz, Stereo/Mono Switch, Volume Control, 9' Long Cord, 1/8" Gold Plated Plug with 1/4" Adaptor, Blister Card Packaging