AmpliVox Personal Multimedia Stereo Headphones w/Volume Control Black. Swivel (90) ear pieces; Foam ear cushions; tough adjustable molded plastic headband; Volume control; 6 ft. cord with stereo plug and gold plated -in. screw-in stereo adapter. Impedance: 32 ohms; Freq. Response: 20-25 Hz. Specifications for AmpliVox Personal Multimedia Stereo Headphones w/Volume Control: Manufacturer: AmpliVox Color: Black Features of AmpliVox Personal Multimedia Stereo Headphones w/Volume Control Swivel (90) ear pieces Foam ear cushions Adjustable headband Volume control 6 ft. cord 1/8" (3.5mm) connection gold plated -in. screw-in stereo adapter Impedance: 32 ohms Freq. Response: 20-25 Hz Package Contents: AmpliVox Personal Multimedia Stereo Headphones w/Volume Control Headphone 6ft. Cord with stereo plug and gold plated 1/4" screw-in stereo adapter. AmpliVox SL1006: Personal Multimedia Stereo Headphones w/Volume Control Black