TechTent&reg; Headset with removable Mic and USB connection for Gaming and Music - Black / Gray Adjustable headband and extremely lightweight for comfort and secure fit Soft PU leather cushion head-pad and ear-pad perfect for noise-isolation Driver: 50mm, excellent sound quality and strong low bass 3.5mm plug and 6 ft. Cord, USB Connection. Frequency response 20Hz-20kHz,Sensitivity:-52dB+/-3dB Impedence Removable Microphone, VoIP Internet Telephony, Compatible with MP3, MP4, PC,PCD,DVD,most smartphone