Animekingdom-3.5mm Vocaloid Miku Hatsune Computer Headphones MP3, MP4 Music Earphone Ship from USA, ship within 1-2 business days Cable length 1.2 m Frequency response 20 - 20.000Hz Impedance 16 , Compatible with smart phones, tablet PC, MP3 player, system computer, CD player etc Miku hatsune headphones theme, cool!