Versatility and high performance converge in the HP100 headphones. With a wide 20 Hz - 20 kHz frequency response and TRANSAIR drivers boasting 101 dB sensitivity, the HP100 delivers total clarity and ample volume with headroom to spare. The HP100 headphones include foam covered earpieces and an adjustable headband for flexible comfort and feature a 1/8 inch miniplug, suitable for connecting to portable audio gear.