DAP DH 140 Headphone with Activ Bass Drive Unit

DH-140 Headphone with Activ Bass Drive Unit Dynamic stereo headphone with excellent sound-transmission. Transparent sound with bright and clear high frequencies, big midtone and forced bass. The stuffed headphone shells guarantee a complete isolation against noise from the outside so that you can enjoy high volumes without interference or distortion. Superb price/quality balance! Technical Info - 40mm Cobalt Driver Unit - Impedance: 32Ohm 15% - Sensitivity: 105dB 3dB at 1KHz - Frequency Response: 20-20,000Hz - Maximum Power Input: 100mw - Rated Power Input: 1mw - Power Requirements: 3V - Cord Length: 4 m. - With Gold Plated 3.5mm Plug