Side tone holes, boosting double bass effect. Crazy love upon hearing. Second-generation memory foam, offering top-level rebounding of 5-8 seconds and promoting the sound proofing by 8%.Magnetic Earphone design, attractive when near, available when apart and suitable for hanging when going out. Brand-new cable controller, available for any tuning, particularly useful during playing games. Total length exceeding 2.2 m, long enough for desktop computer games.