Gold Plated 1/8'' (3.5 Mm) Stereo Plug With 1/4'' Adaptor.Wide Frequency Range Delivers Full Bass And Detailed Highs.Optimized Performance For Use With Most Pro And Consumer Audio Devices - Frequency Range: 20~22,000Hz - Length of Cable: 9 ft..Closed-Back, Circumaural Design Rests Comfortably Over The Ears And Reduces Background Noise - Impedance: 32 Ohms ± 15% - Max. Input Power: 100mW.Single-Sided Cord With Oxygen-Free Copper Wires - Driver Size: 50mm - Sensitivity (S.P.L): 115dB±3dB/mW (at 1 KHz) These headphones are a must for any DJ or music enthusiast. Whether you throwing down at the club, mixing at the studio, or listening to music on the go -- these headphone provide clear and crisp audio. Perfect for mixing, scratching, EQ'ing, or simply enjoying music -- the Pyle Pro PHPDJ2 headphones are great for MP3 players, Walkmans, or any other stereo use. Hear all the hi and low frequencies with the PHPDJ2 studio-quality headphones.