Sony Headphone MDR-ZX110AP

30mm Dynamic Driver Unit On-Ear Headband Four-conductor gold-plated L-shaped stereo mini plug Driver Unit: 30mm Dynamic Sensitivity: 98 dB/mW Impedance: 24 O Frequency Response: 12 - 22,000Hz Cord: 1.2m cord (both sides) with In-line Remote and Mic Plug: Four-conductor gold-plated L-shaped stereo mini plug Weight (Without Cord): 120g