IDANCE SEDJ-500 DJ Headphones Large 4mm driver unit. Tightly sealed acoustic design for high level of sound isolation and booming bass sound. Power handling capacity: 1,000mW Ultra Thick pressure relieving earpads cushion your ears for unbeatable supreme comfort. Durable and lightweight flat cord (1.8m) Frequency response: 15. 20,000Hz. Sensitivity: 108 dB/mW Impedance 32. Plug: Gold Plated L - Shaped stereo mini plug Pack includes 1 headphone. 1/8 Inch adaptor. Free Mufin Player included