The Ocharaku Flat4-Kaede The name Flat4 is derived from the description "Full-range 2-Element 4-Way Effect." According to the company website this 4-way effect is as follows: 1st effect Placement of opposed elements reduces mechanical vibration due to anti-resonance. 2nd effect Twin element parallel drive improves sound pressure sensitivity of low to middle frequency sound. 3rd...
50mm-55mm Headphone Earphone Earbud Ear Pad earpad Foam Cover * Brand New & high quality * Balanced density, flexibility * Elastic, comfortable and durable * enhance sound quality,Noise isolation * Fit most earbud-style earphones with 50-55 in diameter. Diameter:25mm 30mm 35mm 40mm 45mm 50mm 60mm Material: foam