Panasonic Lightweight Over-The-Head Headphones, RP-HT21

30 mm drivers help deliver a clear, powerful audio experience Wide headband provides comfort, even during long sessions. 30 mm drivers help deliver robust sound. Neodymium rare earth magnets give sound reinforcement. XBS technology helps infuse your music with additional bass. 16Hz - 22kHz frequency response reproduces a wide range of audio.